Information regarding LCOS Software Release 7.28 for LANCOM

Information regarding LCOS Software Release 7.28 for LANCOM
Information regarding
LCOS Software Release 7.28
for LANCOM Routers and Wireless LAN Access-Points
Copyright (c) 2002-2007 LANCOM Systems GmbH, Wuerselen (Germany)
LANCOM Systems GmbH does not take any guarantee and liability for software not developed, manufactured or distributed by LANCOM Systems GmbH, especially not for shareware and other extraneous
LANCOM Systems GmbH
Adenauerstrasse 20 / B2
52146 Wuerselen
07.02.2008, CBuersch
Table of contents
New Features, Modifications and History
Page 1 of 9
LCOS („LANCOM Operating System“) is the operating system for all Wireless LAN Access Points and
Routers. In the context of the hardware given by the products the at a time latest LCOS version is available
for all LANCOM products and is available free of charge for dowload from LANCOM Systems.
This document describes the innovations within LCOS software release 7.28, as well as the modifications
since release 6.32.
Warning Hint – Backing up the current configuration
Before upgrading the firmware to LCOS 7.28 it is essential to backup the configuration of your router.
Due to extensive features it is not possible to downgrade to a previous firmware without using the
backup configuration.
Please see the reference manual for instructions on how to backup the router configuration.
If you want to upgrade devices which are only accessible via router connections or WLAN bridges,
please keep in mind to upgrade the remote device first and the local device afterwards.
Note when using managed Access Points
Prior to managing a LANCOM accesspoint using a WLAN controller, you have to upgrade your
access point with the latest converter. The corresponding converter file can be found in your
device’s download directory on the LANCOM homepage. The converter upload is similar to a
firmware upgrade.
Note when using certificates
Prior to loading certificates into the LANCOM you must install the current converter. The appropriate
converter file can be found in your device’s download directory on the LANCOM homepage. Flashing
the converter file works similar to a firmware upgrade.
Note when using converter firmwares
You will need enough free memory to use a firmware 6.0 and newer in your LANCOM 15x1, 1611+,
821+ and DSL/I-10+.
Due to the implementation of several new features within the current build of the firmware, it is no
longer possible to store two main firmware versions side by side. To gain more free space for the
current version, it is now necessary to upload a converter firmware into your device. The converterfirmware has a much smaller size, so that it is now possible to store the main release of the firmware
besides the converter-firmware.
This setup is only necessary once for a single device and is done with the so-called converterfirmware (see readme.pdf of the affected devices).
After having flashed the converter-firmware the firmsave function of the LANCOM device is available
only on a limited scale. The update to a newer firmware is furthermore possible. However, in case of
an update failure the LANCOM will only work with a minimal-firmware which allows just local access
to the device. Any extended functionality, in particular remote administration, is not possible when
running the minimal-firmware.
To assure the full firmsafe functionality for the LANCOM 1611+, there is a firmware 7.29 alternatively
available which offers only bugfixes but no new features.
Page 2 of 9
Note about the ASDL linecode
LCOS versions 5.20 and newer do contain a new ADSL linecode for LANCOM 821+, 1521, 1721 and
1821. This new linecode supports ADSL2+ for LANCOM 821+, 1721, 1722 and 1821(from rev. E).
For the LANCOM 1521, this linecode supports ADSL2. Needless to say that conventional ADSL
interfaces are furthermore supported. Anyhow, there is an LCOS version 5.21 (6.x1...) available,
which solely uses the previous ADSL linecode, and may alternatively be used.
Note on Dynamic VPN registration
By reason of patent you have to register the functionality „Dynamic VPN“ with IP address
transmission over ISDN. This operating mode is usually required when you configure a VPN tunnel
with dynamic IP addresses on both sides without dynamic DNS services.
All other Dynamic VPN operation modes (e.g. transmitting the IP address via ICMP, provoking a
callback etc.) do not require a registration.
The registration process is fully anonymous - no personal or company data will be transmitted.
The registration of the Dynamic VPN option requires administrator rights on the LANCOM device.
Registration with LANconfig
When scanning the device (e.g. right after program start) LANconfig automatically recognizes
devices which have to be activated. After confirming the arising hint LANconfig automatically
transmits solely the device’s serial number to the LANCOM Systems registration server. The
registration code is automatically transmitted back, thus the option will be activated. The state of this
procedure is visible in LANconfig.
Registration with WEBconfig
For the registration with WEBconfig the serial number of the device is required. You can find this
information on the bottom of your device.
Using WEBconfig you will find a link on the first page which leads you to the LANCOM Systems
registration server. Here you must enter your device’s serial number and -optional- your e-mail
address. After transmitting the data you will receive a registration code for the option.
To load this code into your device, please proceed as follows:
Log in to the device with administrator rights. Select “Enable Software Option”, which is placed on
the entry page. On the following page enter the registration code and confirm by selecting “Apply”.
Page 3 of 9
New features, modifications and history
LCOS modifications 7.26.0049 -> 7.28.0031
An incoming call which is redirected to a group after a configurable period of time will be determined if
the caller hangs up
A local SIP registration will be redirected correctly to the superordinate VoIP phone system
Speech data is transmitted correctly on pure analog/ISDN calls via PBX coupling
Improvements in inverse RTP masquerading
Call diversions in the switching center may again be used if set by static call routing entries
If a second SIP client registers itself with the same user data as the first client, the first client will not
be de-registered if the registration of the second client fails
Improvements in the call number assignment of the Voice Call Manager
No more endless ringing of ISDN phones if the call is not answered
The reason string sent by the SIP provider will be redirected transparently to the client to display
suggestive error messages, if applicable.
Improvements in T.38 implementation and corrected HLC signaling for ISDN dependent on SIP user
type (Telephone, Fax. Telephone/Fax)
Improvements in analog Caller ID, CID default for Spain set to RP-AS (Ring Pulse Alert Signal)
Huawei E620 UMTS cards may again be used in the LANCOM
The requested bandwidth will be displayed correctly
DHCP offer packets sent by DHCP relay servers will be accepted by LANCOM DHCP servers working
in auto-mode
Manually configured VPN rules for the DMZ are created again
The DNS domain suffix will be considered when searching for the WLAN controller
RAS- and PPTP dial-ins which get their IP addresses from a pool can be used again
The 5 GHz band may be configured using WEBconfig with a LANCOM C-54
Improvements in channel bundling of multiple DSL connections
WLC-managed accesspoints will be accessible after reboot
IAPP can be used in ARF/VLAN-environments
Page 4 of 9
LCOS modifications 7.24.0012 -> 7.26.0049
Using ARF, answer packets to register requests are now sent to the correct interface
„Busy“ is only signalized if the client is on the phone
Calls from the theft protection are no longer signalized to the phones
On incoming calls the setup will not be transferred repeatedly on the internal bus
Video transfer via SIP is possible again
Correct indication of a bandwidth shortage
The authentication string is now signalized according to RFC 3361
The number transmitted by the switching center is now stored completely in the LANCOM tables
General improvements for hold, consultation hold and connect
If correctly configured, the LANCOM device answers with an „ICMP unreachable“ if a LAN client is not
reachable from WAN
The DHCP relay agent works between ARF interfaces
The routing tag will be considered for loopback addresses, too
Communication improvements between a VRRP master and a preceding switch to define the switch
port for reaching the virtual IP address
Fragmented packets can be routed through the LANCOM without having to be reassembled
Name resolution between ARF networks possible with different interface tags
UMTS throughput improved
Stability improvements for UMTS connections
Support for the Huawei UMTS cards „Mobile Connect E630“ and „Mobile Connect E620“
Synchronization works again with an ADSL Annex A line
Auto mode works again with an ADSL Annex A line
Simplified certificate dial-in (VPN) is possible with PFS group 0
DHCP tracking works in conjunction with VLAN
Accounting data will be stored correctly in the flash of the VoIP router, so that the bootlog contains no
„wrong flash write“ message
Uploading a configuration does no longer lead to a 100% load of the device if syslog notification is
Router access via telnet is granted even after a crashed telnet session
The EAP authentication of the Intel Pro Supplicant is no longer rejected by LANCOM RADIUS
The LANCOM will not communicate itself as primary DNS server if another server was configured
Odd LCOS version numbers may be used again for ADSL Annex A ports
If the distinctive feature is set to „IP address“, no duplicate entries are generated
Page 5 of 9
LCOS modifications 7.22.0016 -> 7.24.0012
The codecs will be correctly offered to the clients, so that all clients are able to accept the call
A manual re-registration of a client is no longer interpreted as a register of a new client
The X-Lite SIP client may again be used with a LANCOM
Fixed an issue with superordinate registration in conjunction with multiple logins
A call from an internal ISDN participant can be made with an-block dialing again
The CANCEL packet was changed as some clients could not handle it and did further signaling
The Voice Call Manager does a forwarding of the „user busy“ information from the ISDN line to the
internal SIP client
Virtual router addresses (VRRP) can only be reached via the assigned ARF interfaces
LCOS modifications 7.20.0065 -> 7.22.0016
Second calls for SIP- and ISDN subscribers are now accepted by default (Busy on Busy disabled).
VoIP calls via some SIP providers will no longer be disconnected after 30 seconds
On outgoing calls to PSTN the correct calling party number will be transmitted
On incoming calls with activated call number suppression the P-Preferred-Identity field will be
transmitted correctly
Reworked Call-Manager trace dumps
Call number display prefixes corrected
Reworked fax transmission via T.38
E-mails sent from VCM do again contain the complete call number
Disabled codecs are no longer used by VCM
No more prefix duplication for multilogin users
Call hold and consultation hold via superordinate SIP users (in different VoIP-Domänen) works
New ADSL2+ linecode for Annex B
If there is a non WPA-encrypted WLAN network on the first SSID, WPA encrypted networks on the
other SSIDs will work again
Call groups may be created via WEBconfig again
LANCOM WLAN client devices do again obey the settings for transmission power and antenna gain
Updating a LANCOM 1511 Wireless with the current LCOS version does no longer lead to a fallback
to the minimal firmware
Script generated VPN tunnels cause the creation of the corresponding VPN rules
A LANCOM device answers the IP x.x.x.254 by default, and will thus again be found by LANconfig
A TFTP request which does not happen via root access does not generate an SNMP „Authentication
When using N:N mapping answer packets will be sent to the correct receiver
DNS requests from subnets will no longer be discarded
Page 6 of 9
LCOS modifications 6.32.0021 -> 7.20.0065
New Features:
redirect, call back, connect or consultation hold may be used for for any call (internal or external)
Call redirects (immediate, on busy, time-dependent) may be configured for internal subscribers
The call diversion of the LANCOM may be configured using the connected phones
Support for internal call diversion of the SIP phone (REFER / REDIRECT)
Multiple calls at a time may be deactivated for SIP- and ISDN subscribers (Busy on Busy)
group call support
T.38 support
Possibility of multiple „same user“ logins to the LANCOM with the same user data
Improved trace output for the VoIP Call Manager
LANCOM Access Points LANCOM WLAN routers now supporting the WLAN controller
Integrated Radius/EAP-Server for autonomous 802.1x authentication
Rapid Spanning Tree support
Enhancements for WLAN roaming
The current 5 GHz channel does not have to be rescanned after 24 hours
ARF support (Advanced Routing and Forwarding)
A name may be assigned to loopback addresses
Inverse masquerading may now be defined for multiple IP addresses and bound to TCP and/or UDP
Access to LAN devices through TCP/HTTP tunnel
Number of simultaneously maskeable connections extended to 4096
Behaviour of particular applications (FTP and IRC) now configurable via firewall settings
New ADSL2+ linecode for Annex A
BOOTP table extended to 256 entries
Number of characters in the WLAN port list extended to 251
Support for further VLANs within VLAN
Option to avoid users from tracing
CRON actions may be deskewd using a time window
Support for the UMTS card „Option GT 3G CDMA - HSDPA 7.2 Ready“
Support for the UMTS card „web ’n’ walk ExpressCard II (Option GE0201)“
Freely configurable DHCP options
Configurable behaviour of the reset switch
Interface grouping by bridge groups
SCEP support (Simple Certificate Enrollment Protocol)
Page 7 of 9
Corrected caller list display for an analogue phone which is connected to the LANCOM
Corrected detection of a SIP trunk’s base number
A busy external ISDN-Bus will now be indicated to an internal ISDN subscriber
ISDN facilities will be forwarded between TE and NT interface
Calls are no longer forwarded to a deactivated group
Calls between two ISDN busses no longer deranged
VoIP users do no longer show up twice in the VoIP user table after having forwarded an incoming call
Dynamic VPN connections via D channel may now be established over a not connected ISDN backup
VPN keepalive without Polling Table entry works again after returning from backup state
After having establisshed a VPN connection a RIP update will be sent
After returning from backup state VPN connections with keepalive will be established immediately
Possibility of inverse masquerading for passive FTP connections
In the port forwarding table “End-Port“ may be “0“, if “End-Port” should be identical to “Start-Port”
Improved client > AP notification on heavy load situations
Corrections in the IGMP protocol, which is used in VRRP scenarios
Channel bundling now possible using one internal and one external ADSL modem
When routing LAN <-> DMZ all target MAC addresses will be checked by the firewall
No more timeouts on manual UMTS network selection
Configuration restriction to particular stations / networks may be used again
Improved certificate upload
ICMP redirects will be sent if multiple ARF networks are configured
No more errors in the action table if a field contains the maximum amount of characters
Modified ADSL-State LED display
The PPP transmitted IP address of the remote station will now be shown with all devices
DHCPINFORM packets will now be handled correctly
If a user has configured a faulty DHCP pool, the DHCP server will automatically switch to active state
after having corrected the configuration
Duplex print now possible with a capable printer connected to the LANCOM USB port
After returning from backup state VPN connections with keepalive will be established immediately
Page 8 of 9
If you want to upgrade the firmware of your device to a new version, please install the latest LANtools first.
Before running the firmware-upload you should save the router configuration to a file. After that you
can use LANconfig to load the latest LCOS-version into the device.
In principle, we suggest upgrading the firmware of your device only if you are in need of the latest features.
Please note that different firmware files might be available for your device. Further information can be found
in the file README.PDF in the download area of our homepage.
Page 9 of 9
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF