Cisco 6500 - Catalyst Series 10 Gigabit EN Interface Module Expansion, Configuration Manual, Page: 158 / 742

8-16
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
OL-20748-01
Chapter 8 Configuring IP Routing and DHCP Services
Configuring OSPF
–
Every router within the same area must agree that the area is NSSA; otherwise, the routers will
not be able to communicate.
Configuring a Point-To-Point, Non-Broadcast OSPF Neighbor
You need to define a static OSPF neighbor to advertise OSPF routes over a point-to-point, non-broadcast
network. When an interface is configured as point-to-point, the following restrictions apply:
•
You can define only one OSPF neighbor for the interface.
• You need to define a static route pointing to the OSPF neighbor if it is not on a directly connected
network.
•
The interface cannot form adjacencies unless neighbors are configured explicitly.
To define an OSPF neighbor on a point-to-point, non-broadcast network, perform the following tasks:
Step 1 If the OSPF neighbor is not on a directly-connected network, create a static route to the OSPF neighbor.
Do not use the default route. See the
“Configuring a Static Route” section on page 8-3 for more
information about creating static routes.
Step 2
Define the OSPF neighbor by performing the following tasks:
a. Enter router configuration mode for the OSPF process. Enter the following command:
hostname(config)# router ospf pid
b.
Define the OSPF neighbor by entering the following command:
hostname(config-router)# neighbor addr [ interface if_name ]
The addr argument is the IP address of the OSPF neighbor. The if_name is the interface used to
communicate with the neighbor. If the OSPF neighbor is not on the same network as any of the
directly-connected interfaces, you must specify the
interface .
c.
If not already configured, define the networks and associated area ID for the interface facing the
OSPF neighbor by entering the following command:
hostname(config-router)# network addr mask area area_id
The addr mask pair must cover the IP address of the interface.
Step 3
Configure the interface through which the FWSM communicates with the neighbor by entering the
following commands:
hostname(config)# interface vlan
hostname(config-if)#
ospf network point-to-point non-broadcast
The following example shows how to configure OSPF across a point-to-point, non-broadcast network.
The OSPF neighbor is not on a directly-connected network, so a static route is needed.
hostname(config)# route ospf_outside 10.3.3.0 255.255.255.0 10.1.1.99 1
hostname(config)# interface Vlan55
hostname(config-if)# nameif outside
hostname(config-if)#
security-level 0
hostname(config-if)# ip address 10.1.1.1 255.255.255.0 standby 10.1.1.2
hostname(config-if)# ospf network point-to-point non-broadcast