FireBrick FB2700 User Manual
viii
13.1. USB configuration .................................................................................................... 91
13.1.1. 3G dongle configuration ................................................................................. 91
14. System Services ................................................................................................................. 92
14.1. Protecting the FB2700 .............................................................................................. 92
14.2. Common settings ..................................................................................................... 92
14.3. HTTP Server configuration ........................................................................................ 93
14.3.1. Access control ............................................................................................... 93
14.3.1.1. Trusted addresses ................................................................................ 93
14.4. Telnet Server configuration ........................................................................................ 94
14.4.1. Access control ............................................................................................... 94
14.5. DNS configuration ................................................................................................... 94
14.5.1. Blocking DNS names ..................................................................................... 94
14.5.2. Local DNS responses ..................................................................................... 94
14.5.3. Auto DHCP DNS .......................................................................................... 95
14.6. NTP configuration .................................................................................................... 95
14.7. SNMP configuration ................................................................................................. 95
14.8. RADIUS configuration .............................................................................................. 95
14.8.1. RADIUS server (platform RADIUS) ................................................................. 95
14.8.2. RADIUS client .............................................................................................. 95
14.8.2.1. RADIUS client settings ........................................................................ 96
14.8.2.2. Server blacklisting ............................................................................... 96
15. Network Diagnostic Tools .................................................................................................... 97
15.1. Firewalling check ..................................................................................................... 97
15.2. Access check ........................................................................................................... 98
15.3. Packet Dumping ...................................................................................................... 98
15.3.1. Dump parameters ........................................................................................... 99
15.3.2. Security settings required ................................................................................ 99
15.3.3. IP address matching ..................................................................................... 100
15.3.4. Packet types ................................................................................................ 100
15.3.5. Snaplen specification .................................................................................... 100
15.3.6. Using the web interface ................................................................................ 100
15.3.7. Using an HTTP client ................................................................................... 101
15.3.7.1. Example using curl and tcpdump .......................................................... 101
16. VRRP ............................................................................................................................. 102
16.1. Virtual Routers ...................................................................................................... 102
16.2. Configuring VRRP ................................................................................................. 103
16.2.1. Advertisement Interval .................................................................................. 103
16.2.2. Priority ....................................................................................................... 103
16.3. Using a virtual router .............................................................................................. 103
16.4. VRRP versions ...................................................................................................... 103
16.4.1. VRRP version 2 .......................................................................................... 103
16.4.2. VRRP version 3 .......................................................................................... 104
16.5. Compatibility ......................................................................................................... 104
17. VoIP ............................................................................................................................... 105
17.1. What is VoIP? ....................................................................................................... 105
17.2. Registration and Proxies .......................................................................................... 105
17.2.1. Registrar ..................................................................................................... 105
17.2.2. Proxy ......................................................................................................... 105
17.3. Home/office phone system ....................................................................................... 106
17.4. Network Address Translation .................................................................................... 106
17.5. Number plan .......................................................................................................... 107
17.6. Telephone handsets ................................................................................................. 107
17.7. VoIP call carriers ................................................................................................... 108
17.8. Hunt groups ........................................................................................................... 109
17.8.1. Ring Type .................................................................................................. 109
17.8.2. Ring order .................................................................................................. 110
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