Reference Guide

668 | Open Shortest Path First (OSPFv2)
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OSPF functions and features, such as MD5 Authentication, Grace Period, Authentication Wait Time, etc,
are assigned on a per interface basis.
Figure 35-9 presents an example of assigning an IP address to an interface and then assigning an OSPFv2
area that includes that Layer-3 interface’s IP address.
Figure 35-9. Configuring an OSPF Area Example
Dell Networking recommends that the OSPFv2 Router ID be the interface IP addresses for easier
management and troubleshooting.
Use the
show config command in CONFIGURATION ROUTER OSPF mode to view the configuration.
OSPF, by default, sends hello packets out to all physical interfaces assigned an IP address that are a subset
of a network on which OSPF is enabled. Use the
show ip ospf interface command (Figure 410) to view the
interfaces currently active and the areas assigned to the interfaces.
Note: If using features like MD5 Authentication, ensure all the neighboring routers are also configured for
MD5.
Dell#(conf)#int te 4/44
Dell(conf-if-te-4/44)#ip address 10.10.10.10/24
Dell(conf-if-te-4/44)#no shutdown
Dell(conf-if-te-4/44)#ex
Dell(conf)#router ospf 1
Dell(conf-router_ospf-1)#network 1.2.3.4/24 area 0
Dell(conf-router_ospf-1)#network 10.10.10.10/24 area 1
Dell(conf-router_ospf-1)#network 20.20.20.20/24 area 2
Dell(conf-router_ospf-1)#
Dell#
Assign Layer-3 interface
with IP Address and
no shutdown
Assign interface’s
IP Address to an Area