Chapter 3 Network Connection ConfigurationConfiguring Network Interface Settings28 Application Gateway Administration GuideConfiguring Network Interface SettingsThe first time that you start the Application Gateway, the serial consoleprompts you for the IP address and subnet mask for interface 0 (P1) andthe IP address of the default gateway device. You can later use theAdministration Tool to change those settings.The network interface settings are as follows:• IP address and subnet mask for interfaces 0 and 1The Application Gateway is typically connected to a router throughthe Application Gateway Interface 0 port. If the Application Gatewaystraddles networks, you will need to use both Interfaces 0 and 1 toconnect the Application Gateway to the networks. If your call serverand/or LDAP server are on different network segments from thesignaling servers, you will need to use both interfaces.The IP address for Interface 0 is preconfigured to 10.20.30.40.• Duplex mode for each interfaceDuplex mode is either auto, full duplex, or half duplex. Use the defaultsetting, auto, unless you need to change it.• Maximum transmission unit (MTU) for each interfaceThe MTU defines the maximum size of each transmitted packet. Thedefault is 1500. Use the default setting unless you need to change it.• The interface (0 or 1) and IP address of the default gateway device,such as the main router or firewall. This should be the same as theDefault Gateway setting that you would find on computers on thesame subnet.To change the network interfaces settings, go to the Network > Interfacespage of the Application Gateway Administration Tool.
