User Guide
Vigor2910 Series User’s Guide 
iv 
3.13.2 Administrator Password.............................................................................................. 144 
3.13.3 Configuration Backup ................................................................................................. 144 
3.13.4 Syslog/Mail Alert......................................................................................................... 146 
3.13.5 Time and Date ............................................................................................................ 148 
3.13.6 Management............................................................................................................... 149 
3.13.7 Reboot System ........................................................................................................... 150 
3.13.8 Firmware Upgrade...................................................................................................... 151 
3.14 Diagnostics........................................................................................................................ 152 
3.14.1 Dial-out Trigger........................................................................................................... 152 
3.14.2 Routing Table ............................................................................................................. 152 
3.14.3 ARP Cache Table....................................................................................................... 153 
3.14.4 DHCP Table................................................................................................................ 153 
3.14.5 NAT Sessions Table................................................................................................... 154 
3.14.6 Wireless VLAN Online Station Table.......................................................................... 155 
3.14.7 Ping Diagnosis............................................................................................................ 156 
3.14.8 Data Flow Monitor....................................................................................................... 156 
3.14.9 Trace Route................................................................................................................ 158 
4
 Application and Examples............................................................................159 
4.1 Create a LAN-to-LAN Connection Between Remote Office and Headquarter ................... 159 
4.2 Create a Remote Dial-in User Connection Between the Teleworker and Headquarter...... 166 
4.3 QoS Setting Example.......................................................................................................... 170 
4.4 LAN – Created by Using NAT ............................................................................................. 172 
4.5 Calling Scenario for VoIP function ...................................................................................... 174 
4.5.1 Calling via SIP Sever.................................................................................................... 174 
4.5.2 Peer-to-Peer Calling ..................................................................................................... 176 
4.6 Upgrade Firmware for Your Router..................................................................................... 178 
4.7 Request a certificate from a CA server on Windows CA Server......................................... 180 
4.8 Request a CA Certificate and Set as Trusted on Windows CA Server............................... 184 
5
 Trouble Shooting ...........................................................................................187 
5.1 Checking If the Hardware Status Is OK or Not.................................................................... 187 
5.2 Checking If the Network Connection Settings on Your Computer Is OK or Not ................. 187 
5.3 Pinging the Router from Your Computer............................................................................. 190 
5.4 Checking If the ISP Settings are OK or Not........................................................................ 192 
5.5 Backing to Factory Default Setting If Necessary ................................................................ 193 
5.6 Contacting Your Dealer ....................................................................................................... 194 










