System Release 2.6

System Release 2.6
Release Notes
System Release 2.6
Sections included:
Product Releases
Scope
Known Limitations
Technical Support
CAMBIUM NETWORKS
Introduction
This document provides information for the Cambium Networks ePMP Series System Release 2.6.
The information in this document is subject to change without notice. The recommendations, technical data,
configurations and statements in this document are believed to be reliable and accurate, but are presented
without implied or express warranty. Users must take full responsibility for their applications of any product
specified in this document. The information in this document is proprietary to Cambium Networks Ltd.
December 2015
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Product Releases
Hardware
The following tables provides the key components available for purchase:
Model Number
Description
C050900A011A
ePMP 1000: 5 GHz Connectorized Radio with Sync (ROW)
C050900A013A
ePMP 1000: 5 GHz Connectorized Radio with Sync (EU)
C058900A112A
ePMP 1000: 5 GHz Connectorized Radio with Sync (FCC)
C050900A021A
ePMP 1000: 5 GHz Connectorized Radio (ROW)
C050900A023A
ePMP 1000: 5 GHz Connectorized Radio (EU)
C058900A122A
ePMP 1000: 5 GHz Connectorized Radio (FCC)
C050900C031A
ePMP 1000: 5 GHz Integrated Radio (ROW)
C050900C033A
ePMP 1000: 5 GHz Integrated Radio (EU)
C058900C132A
ePMP 1000: 5 GHz Integrated Radio (FCC)
C024900A011A
ePMP 1000: 2.4 GHz Connectorized Radio with Sync
C024900A021A
ePMP 1000: 2.4 GHz Connectorized Radio
C024900C031A
ePMP 1000: 2.4 GHz Integrated Radio
FORCE 110
Model Number
Description
C058900C042B
ePMP Force 110AR5-25 High Gain (25 dBi) SM/PTP Radio (FCC)
C050900C043B
ePMP Force 110AR5-25 High Gain (25 dBi) SM/PTP Radio (EU)
C050900C041B
ePMP Force 110AR5-25 High Gain (25 dBi) SM/PTP Radio (ROW)
C058900B052A
ePMP Force 110 PTP - High Performance PTP Radio (FCC)
C050900B053A
ePMP Force 110 PTP - High Performance PTP Radio (EU)
C050900B051A
ePMP Force 110 PTP - High Performance PTP Radio (ROW)
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FORCE 180
Model Number
Description
C058900C072A
ePMP 5 GHz Force 180 Integrated Radio (FCC) (US cord)
C050900C071A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (no cord)
C050900C073A
ePMP 5 GHz Force 180 Integrated Radio (EU) (EU cord)
C050900C171A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (US cord)
C050900C271A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (EU cord)
C050900C371A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (UK cord)
C050900C373A
ePMP 5 GHz Force 180 Integrated Radio (EU) (UK cord)
C050900C471A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (India cord)
C050900C571A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (China cord)
C050900C671A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (Brazil cord)
C050900C771A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (Argentina cord)
C050900C871A
ePMP 5 GHz Force 180 Integrated Radio (ROW) (ANZ cord)
FORCE 200
Model Number
Description
C058900C062A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (FCC) (US cord)
C050900C061A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (no cord)
C050900C063A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (EU) (EU cord)
C050900C161A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (US cord)
C050900C261A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (EU cord)
C050900C361A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (UK cord)
C050900C363A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (EU) (UK cord)
C050900C461A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (India cord)
C050900C561A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (China/ANZ cord)
C050900C661A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (Brazil cord)
C050900C761A
ePMP 5 GHz Force 200AR5-25 High Gain Radio (ROW) (Argentina cord)
C024900C161A
ePMP 2.4 GHz Force 200AR2-25 High Gain Radio (US cord)
C024900C261A
ePMP 2.4 GHz Force 200AR2-25 High Gain Radio (EU cord)
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N000900L021A
ePMP Force 200 Radome
ACCESSORIES
Model Number
Description
C050900D002A
ePMP 1000: 5 GHz Sector Antenna - 120°
C050900D003A
ePMP 1000: 5 GHz Sector Antenna - 90°
C024900D004A
ePMP 1000: 2.4 GHz Sector Antenna - 90° / 120°
N000900L001A
ePMP 1000: Spare Power Supply for Radio with Gigabit Ethernet (no cord)
N000900L002A
ePMP 1000: Spare Power Supply for Radio with 100Mbit Ethernet (no cord)
N000900L005A
ePMP 1000: Spare GPS Antenna
C050900H007B
4 pack of C050900D007B: ePMP 110A5-25 Dish Antenna (25 dBi) for ePMP
Connectorized Radio
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Embedded Software
RELEASE SOFTWARE
The following software update is provided with ePMP System Release 2.6:
Device Description
Applicable Software Package
Connectorized Radio with Sync
ePMP-GPS_Synced-v2.6.tar.gz
Integrated Radio / Connectorized Radio
ePMP-NonGPS_Synced-v2.6.tar.gz
CNUT package (for all radios)
ePMP-2.6.pkg3
When available, new ePMP software releases may be downloaded from:
https://support.cambiumnetworks.com/files/epmp
SPECIAL SOFTWARE UPGRADE NOTICE
All users of ePMP product are encouraged to upgrade the Connectorized Radio with Sync, Integrated Radio,
Connectorized Radio, Force 180 and Force 200 units to the latest System Release 2.6. ePMP software
updates can be downloaded from the Cambium Support website. For instructions on upgrading an ePMP
device, see the ePMP User Guide.
Note
While upgrading a Connectorized Radio with Sync from the factory, ensure both the device
software banks are updated. Upgrade to the latest software TWICE so that both Active & Backup
are updated. This is NOT required for Integrated or Connectorized Radios since these radios do
not have two software banks.
While upgrading devices with System Release 1.0.3 or earlier, ensure that the browser cache is
cleared prior to the upgrade.
UPGRADING THE ON-BOARD GPS CHIP FIRMWARE
Beginning with System Release 2.0, users can upgrade the firmware of the on-board GPS chip present on
the Connectorized Radio with Sync. All users are strongly encouraged to upgrade the on-board GPS chip in
order to avoid sporadic lock up of the chip during normal operation. ePMP software updates can be
downloaded from the Cambium support website. For instructions on upgrading the GPS chip, see below or
refer the ePMP User Guide.
To upgrade the on-board GPS chip on a Connectorized Radio with Sync:
1. Navigate to Monitor > GPS to check the GPS Firmware Version that is currently present on the
radio.
2. If the GPS Firmware Version displays AXN_1.51_2838 and/or “GPS Firmware is up-to-date”, do
nothing. The on-board GPS chip already has the latest firmware.
3. If the GPS Firmware Version displays AXN_1.51_2801, navigate to Tools > Software Upgrade page.
4. Under the GPS Firmware upgrade section, select the same package used to upgrade the device’s
firmware ex: ePMP-GPS_Synced-v2.6.tar.gz.
5. Click the Upgrade button.
December 2015
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CAMBIUM NETWORKS
6. The upgrade can take up to 3 minutes. Once the upgrade is done, the radio’s UI prompts for a
reboot and the reboot button will be highlighted.
7. Click the Reboot button on the top right corner of the UI.
8. Once the radio has completed its reboot process, check under the Monitor > GPS page to ensure
that the GPS Firmware Version displays AXN_1.51_2838.
Note
On occasion the GPS Firmware Version under Monitor > Tools may display NA. This means that
the GPS chip has already locked up and is no longer communicating with the main processor.
Perform a hard reboot (power cycle the entire unit) to restore communication. Then perform
steps 3 through 8 above.
This is NOT required for Integrated or Connectorized Radios since these radios do not have an
on-board GPS chip.
NEW LOCAL IP
Prior to System Release 2.1, in both Bridge and NAT mode, the ePMP Device was previously accessible
through a local IP of 10.1.1.254 through the LAN port. Beginning with System Release 2.1, the local IP has
been updated to 169.254.1.1(/16).
EPMP POST-UPGRADE IP ADDRESSING
If Device IP address Mode is set to DHCP and the device is unable to retrieve IP address information via
DHCP, the device management IP is set to fallback IP of 192.168.0.1 (AP mode), 192.168.0.2 (SM mode),
192.168.0.3 (Spectrum Analyzer mode) or a previously configured static Device IP Address. Units can always
be accessed via the Ethernet port with a local IP of 169.254.1.1.
SPECTRUM ANALYZER ON SM WHEN USING PORT FORWARDING OR DMZ
If port forwarding or DMZ is enabled on the SM, it is necessary to add a port forwarding entry for the
Spectrum Analyzer to work. The Spectrum Analyzer uses port 8001 and this must be explicitly added in the
port forwarding table under Configure->Network->NAT->Advanced, on the radio’s GUI. In addition, once the
Spectrum Analyzer is launched on the client PC, select the Port Forwarding IP as the device IP address under
Tools->Preferences, on the Spectrum Analyzer Java tool. Depending on the network configuration, the
generation configuration scheme must be Client PC -> Port_Forwarding_IP:8001 -> Device_IP:8001.
SPECTRUM ANALYZER WHEN MANAGEMENT VLAN IS ENABLED
When Management VLAN is enabled on the ePMP radio, the Spectrum Analyzer client must be launched
from the same network as the Management VLAN.
Cambium Networks Services Server (CNSS)
CNSS may be used to upgrade, manage and monitor ePMP systems. For more information, see
https://support.cambiumnetworks.com/files/cns server/
December 2015
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CAMBIUM NETWORKS
Scope
System Release 2.6 adds the following:
5 MHz and 10 MHz Support in ePTP mode
5 MHz and 10 MHz Support in AP and SM WiFi Modes
Licensing Support to Expand an AP Lite from 10 SMs to 120 SMs
VLAN VSAs
The ability for the AP to receive SM VLAN VSAs from a RADIUS server and pass these along to the SMs:
 Data VLAN and Priority
 Management VLAN and Priority
 Separate Management VLAN and Priority
 Membership VLANs
 Multicast VLAN
 VLAN Mapping C-VLAN to S-VLAN
GUI User Authentication Extended to RADIUS
•
•
•
Local GUI Authentication is the default
Ability to select Remote RADIUS Server Authentication Only
Ability to select Remote RADIUS Server Authentication and Fallback to Local GUI Authentication
LLDP (Link Layer Discovery Protocol) support
The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol (as specified in IEEE
802.1AB)l used by ePMP for advertising its identity, capabilities, and neighbors on the Ethernet/wired
interface.
Separate Management IP Address Port Forwarding:


Ability to forward packets addressed to the Separate Management IP Address port
Ability to map a range of source ports to destination ports for both the Data Port Forwarding and
Separate Management IP Address Port Forwarding Tables
Wireless MAC Address Filtering for Network Entry:
•
•
•
Ability to specify the exact SM MAC addresses to permit for network entry, or
Ability to specify the exact SM MAC addresses to prevent from network entry
Ability to specify up to 120 entries
Distance to AP Displayed for Each Registered SM in AP -> Monitor ->
Wireless
SNMP trap for failed registration
A new SNMP trap informs the network management system when an SM fails to register to the AP. The trap
is named cambiumpmp80211NetworkEntryFailureTrap
Improved Interference Tolerance at the AP for On-Channel Interferers
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Known problems or limitations (System Release 2.6)
Tracking
10907
10866
10846
10770
10704
10702
Description / Workaround
When in AP WiFi mode and the SM connected is an 802.11a SM, the downlink throughput
can be lower by 20%.
When switching channel bandwidth from 20 MHz to 5 MHz, the GUI will throw a warning
that only Max Registration of 30 is allowed and saving the configuration will not be possible.
Workaround is to edit the Max Registrations field under Configuration->Radio and save
configuration.
After performing a factory reset using the physical reset button on the unit, User defined
RADIUS certificates are not deleted from the device. Workaround it perform a factory reset
through the GUI under Tools->Backup/Restore.
After a factory default through the GUI, user may not be able login into the GUI. Workaround
is to reload the GUI in the browser.
When editing the MAC Addresses entries in the Wireless MAC Filtering table using the
configuration file upload, care must be taken to ensure MAC address format integrity. The
ePMP device will not validate the format.
When editing the Description field of the Wireless MAC Address Filtering table and saving,
the wireless driver will be restarted resulting in the AP dropping all SMs and causing them
to reregister.
Known problems or limitations (System Release 2.5.2)
Tracking
Description / Workaround
10849
WPA2 Encryption Key validation does not accept "-" symbol. (Resolved in 2.6)
10798
Bridge table on AP is empty when there are more than 32 entries. (Resolved in 2.6)
10729
10695
When registration to the primary AP fails the first time, the SM does not attempt to register
to the primary AP in subsequent attempts. This results in the SM registering to an undesired
AP (adjacent or back AP). (Resolved in 2.6)
SM does not register to an alternate channel if the alternate channel is a non-DFS channel.
(Resolved in 2.6)
Known problems or limitations (System Release 2.5.1)
Tracking
10796
10754
10757
10752
10725
10707
December 2015
Description / Workaround
Incorrect memory allocation causes snmpd process to use an abnormal amount of CPU on
the SM resulting in poor SM performance. (Resolved in 2.6)
An overload of ARP packets (>30K per second) from a PC connected to the SM can cause the
SM to run out of memory. Alternately this issue can be caused by a DDOS attach on port 80
of the SM. (Resolved in 2.6)
On rare occasion, management access to the SM is lost even though the SM continues to
pass user traffic. A reboot of the SM is required to re-establish management access.
On occasion 2.4 GHz Force 200 cannot be switched from SM mode to AP mode. (Resolved in
2.5.2)
Uruguay, Vanuatu and Qatar country codes were missing from the Country drop down list.
(Resolved in 2.5.2)
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Tracking
10683
10662
10647
10653
10630
10627
10580
10550
10489
10481
10384
Description / Workaround
2.4 GHz Force 200 were incorrectly locked to FCC region. (Resolved in 2.5.2)
During a wireless link test, uplink user traffic does not pass during the downlink portion of
the Wireless Link Test. (Resolved in 2.6)
Cambium ID is not removed once the device is in cnMaestro’s onboarding queue and
deleted before approval. (Resolved in 2.5.2)
cnMaestro Remote Management Status is not displayed on the GUI for ePTP and Wi-Fi
modes (Resolved in 2.5.2)
On occasion, ePTP Slave does not register to ePTP Master’s Alternate channel after a radar
event. (Resolved in 2.5.2)
After setting the Uplink Max Rate to a value lower than MCS15, the GUI still displays MCS15
even though the device has accepted the change. (Resolved in 2.5.2)
On rare occasions, in Standard WiFi mode, the “Available APs” table under Monitor>Wireless page on the SM is empty. (Resolved in 2.5.2)
Garbage logs written to syslog console. (Resolved in 2.5.2)
When using 20 MHz DFS channels and 2.5ms frame size, SMs may take up to 10 minutes to
register. (Resolved in 2.5.2)
When an invalid channel is set through SNMP, it may cause the radio to reboot. (Resolved in
2.5.2)
Under extremely high interference/noise, ePTP Slave may crash resulting in a reboot of the
SM. (Resolved in 2.5.2)
Known problems or limitations (System Release 2.5)
Tracking
10746
10380
10371
10363
10344
10332
10326
10321
10301
10283
10276
10273
December 2015
Description / Workaround
OS Command Injection Vulnerability Using SNMP (Resolved in 2.6)
On occasion upon boot up, AP sends DHCP request on the wireless interface in addition to
the Ethernet interface. (Resolved in 2.5.1)
2.4 GHz AP will not use more than 20 dBm TX power when in Standard WiFi
mode. (Resolved in 2.5.1)
RFC1213 OID .1.3.6.1.2.1.2.2.1.5.1 (ifSpeed) always returning “10000000" regardless of what
the speed is configured/negotiated to. (Resolved in 2.5.1)
OID numbers for cambiumAPConnectedSTAEntry table incremented by 1 in Release 2.5.
(Resolved in 2.5.1)
SMs take longer than normal to register to AP when using 2.5ms frame size. (Resolved in
2.5.1)
When AP is in Standard WiFi mode and using 5.2 GHz, it incorrectly uses 33 dBm EIRP
instead of 36 dBm in FCC regions. (Resolved in 2.5.1)
Ping utility (under Tools->Ping) will not work if buffer size is larger than 1472 bytes.
(Resolved in 2.5.1)
When in ePTP mode, the radio would stop transmitting data after a few days of normal
operation, requiring a reboot. (Resolved in 2.5.1)
In Flexible mode, when sending bidirectional TCP data, the throughput may degrade up to
17% on the Uplink compared to previous releases. (Resolved in 2.5.1)
When an ePMP SM is switched to Standard WiFi mode, the “Distance To AP” under
Configuration->Radio incorrectly gets set to 52 miles. Workaround is to manually adjust this
parameter to the correct distance of SM to the AP. (Resolved in 2.6)
SMs occasionally do not register issue with Reason: INVALID SECURITY KEY in PTP TDD
and ePTP modes. (Resolved in 2.5.1)
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CAMBIUM NETWORKS
Tracking
10271
10110
10108
10026
5405
Description / Workaround
When the SM is in ePTP or Standard WiFi mode, the web interface incorrectly displays
“Subscriber Module Priority” field. SM Priority is supported in TDD mode only and this issue
has no impact on the normal operation of the system.
On rare occasion, SM crashes when using 2.5ms frame when the SM is under heavy
interference. (Resolved in 2.5.1)
‘home’ user can execute ping/traceroute and download full device configuration. (Resolved
in 2.6)
ePMP radios may be exposed to the open internet when using white IP addresses. This
makes the radio vulnerable to attacks. (Resolved in 2.5.1)
Known problems or limitations (System Release 2.4.3)
Tracking
10127
10112
10099
10060
10032
9927
9930
10644
10301
9951
Description / Workaround
On occasion, multicast traffic may not be forwarded by the AP on the downlink. (Resolved in
2.5)
Periodic disconnects of the SM are in TDD mode when the SM is under high interference.
(Resolved in 2.6)
When the AP is SNMP polled for the list of registered SMs, the SNMP agent returns an
empty string until the web interface is pulled up. (Resolved in 2.5)
When special characters such as apostrophes are used in Device Name, System Name and
System Description fields and spaces are used in AP SSID field, upgrade from 2.4.2 to 2.4.3
results in configuration errors. Field validation checks have been added to the web interface
to warn the users of invalid special characters for the impacted fields. (Resolved in 2.5)
When Separate Management IP is enabled and the SM is configured as a PPPoE client, it is
possible to access the management interface of the SM through its Wireless IP. (Resolved in
2.5)
On occasion, when an ePTP Slave disconnects, it may not register back to its Master because
the Master has a stale session still active and cannot allow a second session. The issue also
manifest itself into a scenario where there is no data passing in the Uplink or Downlink
direction of the link. A reboot of the Master or Slave resolves the issue. (Resolved in 2.6)
On occasion, pings are lost when continuously pinging the SM from the AP. The ping loss
can occur for a period of 30-60 seconds before it operates normally. User traffic may also be
lost during this time and a reboot of the SM may be required to recover the SM.
9911
List of available frequencies for country code Thailand is incorrect. (Resolved in 2.5)
9893
The transmitter output power displayed by the GUI varies significantly as the radio switches
between management and data packets to take power measurements. (Resolved in 2.5)
9837
On release 2.4.3, the AP will not allow more than 106 SMs to register to it. (Resolved in 2.5)
9808
9655
9376
9333
December 2015
After changing the IP address of the ePMP radio, the GUI does not auto reconnect to the
device using the new IP. As a workaround, type in the new IP address on the web browser to
access the radio’s GUI. (Resolved in 2.5)
When in ePTP and after several days of the link being up and functioning normally, the ePTP
Slave may stop passing user traffic. (Resolved in 2.5)
On occasion, when changing parameters under Configuration->Network (and Saving), the
device may take up to 60 seconds to apply the changes. (Resolved in 2.5)
On the GUI, where the page has internal vertical scroll bars (ex: Monitor->Performance), the
table may overlap the page footer. There is no impact to normal operation of the system.
(Resolved in 2.5)
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CAMBIUM NETWORKS
Known problems or limitations (System Release 2.4.2)
Tracking
9283
9255
Description / Workaround
On the Connectorized radio with Sync supporting GigE port speeds where the Radio Mode is
an AP and Ethernet Port Setting is set to manual/1000Mbps; then if the Radio Mode is
switched to SM, the port speed will default to 100Mbps. Pleas ensure that after changing the
Radio Mode to SM, the port speed is set to 1000Mbps. (Resolved in 2.5)
On rare occasions, when an SM reregisters, the Network Entry Attempts counter under
Monitor->Performance page will show twice the number of actual NE attempts. (Resolved in
2.5)
Known problems or limitations (System Release 2.4.1)
Tracking
9290
Description / Workaround
On a json config import using Firefox, if the Device Name has a space, the config import
fails. (Resolved in 2.4.2)
Known problems or limitations (System Release 2.4)
Tracking
9238
9267
9146
9041
8990
8987
8967
8959
8893
8820
8732
8690
December 2015
Description / Workaround
Bridge table on the SM under Monitor->Network displays “NA” under Port for certain
entries. (Resolved in 2.4.2)
When the radio is in TDD mode, the “show rssi” command provides no results. (Resolved in
2.4.2)
When performing an SNMP get on the MIR Profile Names, the last character is truncated.
(Resolved in 2.4.1)
Software/Upgrade downgrade fails when using the HTTPS under the URL option under
Tools->Software Upgrade. (Resolved in 2.4.1)
CNUT upgrade fails when trying to upgrade from Release 2.4. (Resolved in 2.4.1)
When operating in ePTP mode, the Slave displays the Operating Frequency 10 MHz lower
than the actual operating frequency. (Resolved in 2.4.1)
Available AP List under Monitor->Wireless on the SM is no longer displayed. In addition, on
occasion, the Bridge Table does not display any devices connected to the LAN port of the
SM. (Resolved in 2.4.1)
It is not possible to use the ‘-‘ symbol when configuring the SSID through CLI. (Resolved in
2.4.1)
On occasion, when changing from ePTP to TDD, the GUI may display incorrect values (ex:
Country Code and Frequency Carrier) after the change is saved. Workaround is to refresh the
browser window to reload correct values. (Resolved in 2.4.3)
When changing modes from ePTP Master to SM TDD, the device may incorrectly boot up as
ePTP Slave after the change is saved. Workaround is to change from ePTP Master to AP TDD
mode and then switch to SM TDD mode. (Resolved in 2.4.3)
When an SM is not registered to an AP, eAlign (under Tools->eAlign) incorrectly displays an
RSSI value. Ignore the measurement until a valid link is established. (Resolved in 2.4.3)
eAlign not available on the AP when operating as an Enhanced PTP Master. This
functionality will be added in a near future release. (Resolved in 2.4.3)
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CAMBIUM NETWORKS
Tracking
8578
8532
8321
8198
Description / Workaround
On rare occasion, when the GUI of the ePMP radio is opened in Google Chrome and left
inactive for a few hours, the browser loses connectivity with the radio and hangs.
Workaround is to close the browser window/tab and open a fresh GUI session. (Resolved in
2.5)
On rare occasion, when the GUI of the ePMP radio is open and left inactive for four or more
hours, a java scripts error occurs and the GUI becomes unresponsive. Workaround is to
close the browser window/tab and open a fresh GUI session. (Resolved in 2.4.3)
Separate Management IP is not accessible from the AP on the same subnet if a Separate
Management Gateway is configured. (Resolved in 2.4.1)
On occasion, stale ARP entries are not cleared from the ARP table (under Monitor->network)
on the SM. The entries should be cleared in 5 minutes but it may take up to 10 minutes for
them to be cleared.
Known problems or limitations (System Release 2.3.4)
Tracking
8147
Description / Workaround
When SM is in Bridge mode, the Separate Management IP and Separate Management VLAN
configurations are available on the GUI under Configuration->Network. There is no system
impact due to this. (Resolved in 2.4.1)
Known problems or limitations (System Release 2.3.3)
Tracking
8285
8063
Description / Workaround
On rare occasions, it may not be possible to change the Synchronization Source under
Configuration->Radio after upgrading the AP to 2.3.3. This is a GUI issue; the radio still
operates normally using the previously chosen Synchronization Source. Workaround is to
reboot the AP and reload the GUI on the browser. (Resolved in 2.3.4)
When both the SM’s Wireless IP and Separate Wireless Management IP are in the same
subnet, then if both Data VLAN and Separate Wireless Management VLAN are the same, the
SM’s management interface is not accessible. As a workaround, please ensure that the two
Wireless IPs are not on the same subnet and VLAN. (Resolved in 2.4.3)
Known problems or limitations (System Release 2.3.1)
Tracking
8025
8011
7946
7822
December 2015
Description / Workaround
The management interface (GUI, ssh, SNMP etc.) of the AP is accessible only from within the
same subnet as the AP. (Resolved in 2.3.3)
When Separate Wireless Management IP is enabled and the SM’s Wireless IP is obtained via
DHCP, then the SM is accessible through the SM’s Wireless IP. (Resolved in 2.3.4)
On rare occasions, if eDetect is run system wide (i.e. Detecting Device set to AP/SMs)
followed by clicking the Reset Stats button under Monitor->Performance, the GUI may lock
up. Workaround is to reboot the AP to gain access to the GUI again. (Resolved in 2.3.4)
When the SM is in NAT mode, it’s possible to configure the Separate Wireless Management
IP in the same subnet as the IP of the SMs Ethernet/LAN interface. Care should be taken to
configure the Separate Wireless Management IP on a different subnet for security.
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CAMBIUM NETWORKS
Tracking
7816
7729
Description / Workaround
When Separate Wireless Management IP is enabled, L2 ACL rules may not work as expected.
(Resolved in 2.3.4)
When selecting an AP from the Available APs list to add to the Preferred APs list (under
Monitor-Wireless), the WPA2 password popup box may incorrectly present multiple fields to
enter password. Workaround is to enter the password in all the fields and click Apply.
(Resolved in 2.4.3)
Known problems or limitations (System Release 2.3)
Tracking
7887
7675
7688
7676
7639
7638
7627
7626
December 2015
Description / Workaround
When using a Cisco SPA-122 ATA device under the SM; then if the SM loses registration and
connects back to the AP, a reboot of the Cisco device may be required to restore VoIP
services. (Resolved in 2.4.1)
If a Microsoft Window 8.1 PC is used as a client and DHCP option 82 is enabled on the AP,
the client may not be able to obtain a lease from the DHCP server above the AP. Currently
the only workaround is to disable DHCP Option 82 on the AP. (Resolved in 2.3.1)
On ETSI locked radios if Automatic Channel Selection (ACS) is enabled and/or Alternate
Channels (1 and/or 2) are selected, then if radio mode is changed from AP to SM, it may not
be possible to change it back to AP. Workaround is to disable ACS and remove Alternate
Frequencies (Configuration->Radio) in AP mode before changing it to SM or SA. If this is not
done, the only way to recover the radio (to change it back to AP from SM) is to factory
default the unit. (Resolved in 2.3.1)
SM may not successfully obtain an IP address via DHCP if certain special characters (ex:
parenthesis) are used in the Device Name of the SM.
When the SM is operating in Standard WiFi mode, the SM Priority feature is not supported.
However the SM GUI displays the SM priority level on the Home page when in Wi-Fi mode.
There is no system impact due to this. (Resolved in 2.4.3)
With the introduction of the Multicast feature in Release 2.3, new GUI parameters have been
added. Under Monitor->Network on the SM a subsection called Multicast Status has been
added that displays the number of multicast groups identified by the SM. This subsection is
repeated on the same page as a blank subsection. There is no system impact due to this.
(Resolved in 2.3.4)
In Release 2.3, a minor enhancement was introduced where the user is able to select an AP
from the SM’s Available APs list (under Monitor->Wireless) and add it to the Preferred APs
list (under Configuration->Radio). When adding an AP with Open security mode, the GUI
incorrectly prompts for a WPA2 password. Workaround is to enter a blank password, then
navigate to the Preferred APs list (under Configuration->Radio) and set the security mode for
the AP to Open. (Resolved in 2.4.3)
When there are multiple entries in the Available APs list (under Monitor->Radio) on the SM,
a vertical and/or horizontal scroll bar is activated depending on browser resolution and size.
When the GUI auto refreshes, these scroll bars snap back to the left (horizontal) and top
(vertical) and user will have to scroll again. Workaround is to increase the Webpage Auto
Update time to a higher value (under Configuration->System) to reduce the frequency of the
snap. (Resolved in 2.4)
14
CAMBIUM NETWORKS
Tracking
7622
7529
7706
7289
7287
7236
7122
Description / Workaround
In Release 2.3, a minor enhancement was introduced where the user is able to select an AP
from the SM’s Available APs list (under Monitor->Wireless) and add it to the Preferred APs
list (under Configuration->Radio). However the user is able to add more than 16 entries
while the Preferred APs list supports a maximum of 16 entries. User will need to manually
delete entries in the Preferred APs list to not exceed 16 before the configuration can be
saved.
On a DFS channel and in the presence of interference, especially under bidirectional traffic,
SMs may disconnect and not connect back to the AP. Workaround is to reboot the AP.
(Resolved in 2.3.1)
On occasion, the GUI does not display data on the Monitor->Wireless Page. Workaround is
to refresh/reload the browser.
When ACS is run multiple times, the ACS chart (under Tools->ACS) may display prior results
while the radio is operating on a channel selected by the last ACS run. Refresh the browser
to see the latest chart.
When using 5 MHz or 10 MHz channel bandwidths, latency is up to 20% higher compared to
20/40 MHz channel bandwidths. (Resolved in 2.3.1)
When there are more than 10 SMs connected to an AP, single stream TCP throughput on the
downlink can degrade up to 25% for a single SM. (Resolved in 2.3.1)
Known problems or limitations (System Release 2.2)
Tracking
Description / Workaround
7088
It is recommended to save the configuration right after deleting an L3 ACL rule. If before
saving the configuration, a new ACL rule is added or existing rule is modified, it may result
in a corrupted configuration of the rules. (Resolved in 2.3)
7083
If an SM is configured to obtain an IP through DHCP, then if the SM is configured to
Spectrum Analyzer mode, the device will attempt to obtain an IP address from a DHCP
server through the LAN side. If there are no DHCP servers available, the device will fall back
to its default Spectrum Analyzer IP of 192.168.0.3. This is not an issue if the SM was
configured with a static IP address. (Resolved in 2.3)
7064
When an SM is scanning for APs, even if the scan bandwidth is set to 20MHz, the Home
screen on the GUI displays 40MHz under Operating Channel Bandwidth. This is simply a GUI
display error. In reality, the SM is scanning 20 MHz channels. (Resolved in 2.3)
7038
After an AP or SM is configured to Spectrum Analyzer mode, parameters that don’t apply to
AP or SM mode respectively are displayed. The incorrect display of the fields does not have
any impact on the normal operation of the system. (Resolved in 2.4)
Known problems or limitations (System Release 2.1)
Tracking
7113
December 2015
Description / Workaround
When the SM IP is set to 172.16.252.0/21 address space, then the SM GUI is not accessible
using Firefox (Mozilla) browser. Workaround is to use a different browser (ex: Internet
Explorer, Google Chrome or Apple Safari). (Resolved in 2.3)
15
CAMBIUM NETWORKS
Tracking
7101
7032
Description / Workaround
On rare occasion, cambiumpmp80211SMRegTrap(1.3.6.1.4.1.17713.21.0.11) may cause a
trap flood. Workaround is to reboot the AP to stop the flood. (Resolved in 2.2)
When the SessionTime OID (.3.6.1.4.1.17713.21.1.2.20.1.12.1) on the SM is polled through
SNMP, it does not update unless the GUI of the SM is open. (Resolved in 2.2)
6919
When ACS is run multiple times in a row (under Tools->Automatic Channel Selection), the
ACS graph may also show the scale on the X-axis incorrectly (40MHz instead of 20MHz).
Refresh the browser screen (F5 in MS Windows) to get the correct chart for the last ACS run
on that page.
6918
When ACS is run multiple times in a row (under Tools->Automatic Channel Selection), the
ACS graph may display a primary frequency different from the frequency at which the radio
is operating on. (Resolved in 2.4.3)
6916
After running ACS on a 40MHz channel, the primary frequency displayed on the ACS chart
(under Tools->Automatic Channel Selection) will be offset from the operating frequency of
the radio by 10MHz. There is no workaround and there is no impact on the normal operation
of the radio. This is an ACS chart display issue. (Resolved in 2.2)
6915
When adding preferred APs on the SM under Configuration->Radio, the WPA2 PSK field is
not highlighted as a required field. Please ensure you fill in the WPA2 key to allow the GUI to
save the changes. (Resolved in 2.3.1)
6913
6626
Using ‘snmpget’ to obtain SNR values from the device returns an error. Workaround is to
use ‘snmpbulkget’ or ‘snmpwalk’ to obtain the OID values and parse for specific OIDs.
(Resolved in 2.2)
6872
On occasion, when both ACS and Carrier Sense (under Configuration->Radio) are enabled,
some SMs may not register to the AP. Workaround is to disable ACS or Carrier Sense.
(Resolved in 2.2)
6847
When the AP SSID is 32 characters long, the entire SSID is not displayed on the AP’s GUI
Home page. (Resolved in 2.3)
6801
When an ETSI license key is applied to an ePMP 5GHz ETSI locked radio, it may come up
with “Generic ETSI” as country code. Perform a second reboot of the radio to load the
license key.
6772
After selecting text in a text box on the UI, it is not possible to replace it with new text by
typing over it; it instead appends the new text. The original text has to be deleted first before
entering in the new text. (Resolved in 2.4.3)
6650
6564
6562
After a configuration file is backed up, it is possible to change the file to include invalid scan
frequencies and empty MIR entries. Do not configure empty or invalid entries in the
configuration file before importing back into the radio. (Resolved in 2.2)
6539
On occasion, when eDetect is run from the AP, the UI will appear to be stuck in “Running”
state beyond the time configured for Detection Duration. Refresh the browser for the UI to
display the correct state. (Resolved in 2.2)
6407
When a new user logs into the radio UI, notifications for the previously logged in user is
visible. Workaround is to clear all notifications before logging out of the radio’s UI.
December 2015
16
CAMBIUM NETWORKS
Tracking
5677
Description / Workaround
When logged in using “Home” user account, only the Monitor menu is available and the
home user cannot change any configuration. Workaround is to use admin or installer
account. (Resolved in 2.2)
Known problems or limitations (System Release 2.0.2)
Tracking
Description / Workaround
6901
On occasion, when using SNMP to monitor the Tx/Rx bytes, the device stops updating the
counters after a few hours. Workaround is to reboot the device. (Resolved in 2.1)
6752
On the SM, when all 20MHz and 40MHz frequencies in the scan list are selected and saved,
the GUI returns an error and the save is unsuccessful. (Resolved in 2.1)
6444
After altering the order of the APs in the Preferred APs list (under Configuration->Radio),
then saving this configuration results in a failed save. (Resolved in 2.1)
Known problems or limitations (System Release 2.0.1)
Tracking
Description / Workaround
6636
For certain ETSI countries, the EIRP limit for 5.8GHz is not enforced. (Resolved in 2.0.2)
6558
An Integrated/Connectorized Radio used as AP may crash when more than 40 SMs are
registered to in a high interference environment. (Resolved in 2.0.2)
6509
When country code is set to Germany and using 40 MHz channel bandwidth, it is not
possible to configure 5855 MHz at a DFS alternate frequency (Resolved in 2.0.2)
6283
On Connectorized Radio with Sync, when GigE is configured then sporadic packet loss may
be seen when the Ethernet cable length is longer than 45 meters. (Resolved in 2.0.2)
Known problems or limitations (System Release 2.0)
Tracking
Description / Workaround
6311
On 2.4GHz radios, operator cannot set country code other than United States/FCC (Resolved
in 2.0.1)
6245
When configuring L2 firewall rules and non-numeric values are used for setting the
“EtherType” rule, the UI will not display the rule value. However, the rule is set on the radio
and will work normally. (Resolved in 2.1)
December 2015
17
CAMBIUM NETWORKS
Tracking
Description / Workaround
6117
When a device’s configuration is backed up and modifications are made to the Radius Server
table, only the first table entry is validated when the modified configuration is restored onto
a device. Care must be taken to enter valid entries into the Radius Server table when
modifying the device configuration file (.json format). (Resolved in 2.1)
6101
On ETSI radios, if an invalid license key is entered, the radio will reset to factory default
settings. Care must be taken to enter the exact key string obtained from Cambium licensing
web-site and avoid modifying the license key before entering into the radio. (Resolved in 2.3)
5956
When 16 or more L2 ACL rules are configured and full syslog is enabled and the radio is
overloaded with small packets of size less than 30 bytes, it may cause of reboot. The radio
will recover by itself after the reboot. (Resolved in 2.1)
5798
On occasion, upon launching the UI of the radio in a browser, a red icon may appear on the
“Configure” menu button indicating incorrect configuration. The icon will disappear on its
own within 3 seconds. (Resolved in 2.1)
5018
On rare occasion, when using Radius and the SM is under poor RF conditions, reauthentication may fail. A device reboot may be required to perform Network Entry again.
Known problems or limitations (System Release 1.4.3/1.4.4)
Tracking
Description / Workaround
5845
When configuring a DMZ IP address on a subnet different from the Device LAN IP address
subnet, a reboot of the radio is required for the changes to take effect. (Resolved in 2.0)
5664
When more than 150 membership VLANs are configured on the ePMP SM, there may be a
degradation in throughput on that SM. (Resolved in 2.1)
5467
Packet Byte counters under the Monitor->Performance page, are 32-bit instead of 64-bit.
(Resolved in 2.0)
4948
During the first 2 minutes after an AP boot up or restart of wireless interface (when changing
radio parameters such as Tx power, Center Frequency etc.), the Throughput Test tool will
provide poor results on DL. Throughput Test will perform normally after this 2-minute
period. (Resolved in 2.0)
Known problems or limitations (System Release 1.4.1)
Tracking
5762
5751
5746
December 2015
Description / Workaround
The antenna gain parameter of the 2.4 GHz Integrated module is locked at 13 dBi while it
must be 11 dBi. (Resolved in 1.4.3)
When running a Throughput Test (Tools => Throughput Test) under high interference
conditions, the SM disconnects. (Resolved in 1.4.3)
18
CAMBIUM NETWORKS
Known problems or limitations (System Release 1.4.0)
Tracking
5933
5848
5683
5672
5671
5670
5509
5621
5543
Description / Workaround
FCC countries are limited to 13dBm of Max Tx power instead of 14dBm (Resolved in 1.4.4)
Using power reset sequence or reset button to default the radio does not work after the first
time. (Resolved in 1.4.4)
On ePMP radios programmed for EU region, two reboots are required when switching
device mode from AP to SM. (Resolved in 2.4)
On ePMP radios programmed for EU region, when NAT mode is enabled on the SM, there is
no management access to the SM from the AP. This does not impact user traffic through the
link. (Resolved in 1.4.1)
On rare occasion, after an upgrade from Release 1.3.4 to Release 1.4.0, the Country Code
setting is not carried over and no channels are available for selection. (Resolved in 1.4.1)
A password change for management user accounts does not get applied and the radio falls
back to the default password. (Resolved in 1.4.1)
With 25 or more SMs registered to the AP, GUI access to the AP will be slower than normal.
This does not impact normal operation of the radio and there is no impact to user traffic in
the sector. (Resolved in 2.0)
Trace route tool does provide any indication on the GUI when a different subnet is
unreachable. (Resolved in 2.0)
In Spectrum Analyzer mode, some greyed out fields can still be configured. These fields are
meant to be read-only so the user must not modify them when device mode is SA.
(Resolved in 2.0)
Known problems or limitations (System Release 1.3.4)
Tracking
4948
4598
Description / Workaround
Spectrum Analyzer has small range of frequencies that cannot be scanned (5720-5730 MHz).
This is seen only if you manually configure a scan range. (Resolved in 1.4.0)
VoIP priority cannot be assigned to user defined QoS profiles. This does not impact
assigning VoIP priority to the overall system. (Resolved in 1.4.0)
Known problems or limitations (System Release 1.2.3)
Tracking
4538
4582
4698
4189
4705
December 2015
Description / Workaround
When SM is set to NAT and local DHCP server is enabled, it is possible to provide a start and
end IP address for the DHCP pool that is outside the IP address/mask of the LAN interface.
Please verify that the start and end IP addresses are valid for the DHCP mask when
configuring the local DHCP server. (Resolved in 2.0)
Only one DNS server can be configured on the ePMP radio. Configuration of a secondary
DNS server is not currently supported. (Resolved in 1.3.4)
When entering a MIR profile, make sure a profile number is configured with it. It is possible
to configure a profile without a profile number and this profile will not be usable in the
system. (Resolved in 1.3.4)
Configuring alternate DFS frequency is possible on a non-DFS (5.7GHz) band. This has no
impact on the system operation.
The DL RSSI level reported at the AP (Monitor->Wireless Status) is an estimated value. For
accuracy, use the DL RSSI reported at the SM.
19
CAMBIUM NETWORKS
Security Researcher Acknowledgments
Cambium Networks is pleased to recognize Karn Ganeshen who have helped make ePMP 1000 safer by
finding and reporting security vulnerabilities and worked with us to remediate the issue.
Technical Support
For technical support, see
http://www.cambiumnetworks.com/support/
Cambium Networks Community Forum
Join the conversation
http://community.cambiumnetworks.com
December 2015
20
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