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Listed are the items under the Firewall section: General Settings, Packet Filter, Intrusion Detection,
URL Filter, IM/P2P Blocking and Firewall Log.
General Settings
You can choose not to enable Firewall and still able to access to URL Filter and IM/P2P Blocking or enable the Firewall using preset filter rules and modify the port filter rules as required. The Packet
Filter is used to filter packets based-on Applications (Port) or IP addresses.
There are four options when you enable the Firewall, they are:
L All blocked/User-defined: no pre-defined port or address filter rules by default, meaning that all inbound (Internet to LAN) and outbound (LAN to Internet) packets will be blocked. Users have to add their own filter rules for further access to the Internet.
L High/Medium/Low security level: the predefined port filter rules for High, Medium and Low security are displayed in Port Filters of Packet Filter.
Select either High, Medium or Low security level to enable the Firewall. The only difference between these three security levels is the preset port filter rules in the Packet Filter. Firewall functionality is the same for all levels; it is only the list of preset port filters that changes between each setting. For more detailed on level of preset port filter information, refer to Table 1: Predefined Port Filter.
If you choose of the preset security levels and add custom filters, this level of filter rules will be saved even and do not need to re-configure the rules again if you disable or switch to other firewall level.
The “Block WAN Request” is a stand-alone function and not relate to whether security enable or disable. Mostly it is for preventing any scan tools from WAN site by hacker.
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SIP ALG: You can choose to enable or disable SIP ALG by clicking on the radio buttons.
FTP ALG: You can choose to enable or disable FTP ALG by clicking on the radio buttons.
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Table of contents
- 5 Features
- 9 The Front LEDs
- 10 The Rear Ports
- 11 Cabling
- 24 ADSL Status
- 24 ARP Table
- 25 DHCP Table
- 26 Routing Table
- 28 NAT Sessions
- 28 UPnP Portmap
- 29 VoIP Status
- 29 VoIP Call Log
- 30 Event Log
- 30 Error Log
- 31 Diagnostic
- 38 LAN - Local Area Network
- 51 WAN - Wide Area Network
- 60 Time Zone
- 61 Remote Access
- 61 Firmware Upgrade
- 62 Backup / Restore
- 63 Restart Router
- 64 User Management
- 67 General Settings
- 69 Packet Filter
- 78 Intrusion Detection
- 81 URL Filter
- 84 IM / P2P Blocking
- 85 Firewall Log
- 87 SIP Device Parameters
- 90 SIP Accounts
- 91 Phone Port
- 93 PSTN Dial Plan (Router with LINE port only)
- 97 VoIP Dial Plan
- 102 Call Feature
- 102 Speed Dial
- 102 Ring & Tone
- 105 Prioritization
- 106 Outbound IP Throttling (LAN to WAN)
- 108 Inbound IP Throttling (WAN to LAN)
- 115 Add Virtual Server
- 117 Edit DMZ Host
- 123 Configuration of Time Schedule
- 128 Device Management
- 132 VLAN Bridge