Web OS 10.0 Application Guide80 n Chapter 4: OSPF 212777-A, February 2002Router IDRouting devices in OSPF areas are identified by a router ID. The router ID is expressed in IPaddress format. The IP address of the router ID is not required to be included in any IP inter-face range or in any OSPF area.The router ID can be configured in one of the following two ways: Dynamically—OSPF protocol configures the lowest IP interface IP address as the routerID. This is the default. Statically—Use the following command to manually configure the router ID: To modify the router ID from static to dynamic, set the router ID to 0.0.0.0, save the con-figuration, and reboot the Web switch. To view the router ID, enter:AuthenticationOSPF protocol exchanges are authenticated so that only trusted routing devices can participate.This ensures less processing on routing devices that are not listening to OSPF packets.OSPF allows packet authentication and uses IP multicast when sending and receiving packets.Routers participate in routing domains based on predefined passwords. Web OS 10.0 supportssimple password authentication (type 1 plain text passwords) only. This type of authenticationallows a password to be configured per area.Figure 4-4 shows authentication configured for area 0 with the password test. Simple authenti-cation is also configured for the virtual link between area 2 and area 0. Area 1 is not configuredfor OSPF authentication.Figure 4-4 OSPF Authentication>> # /cfg/ip/ospf/rtrid >> # /info/ospf/genIF 1Area 1Area 0ABR ABRASBR toExternal NetworksArea 2 Virtual linkkey=alteonSimple authenticationkey=testIF 3IF 4IF 2IF 5Web switch 1Web switch 2 Web switch 3Web switch 5Web switch 4
