Configuring Ospf - Cisco IE-4000 Software Configuration Manual

Configuring IP Unicast Routing

Configuring OSPF

DETAILED STEPS
Command
1. configure terminal
2. interface interface-id
3. no shutdown
4. ip address ip-address subnet-mask
5. ip summary-address rip ip address
ip-network mask
6. no ip split horizon
7. end
8. show ip interface interface-id
9. copy running-config startup-config
To disable IP summarization, use the no ip summary-address rip router configuration command.
EXAMPLE
In this example, the major net is 10.0.0.0. The summary address 10.2.0.0 overrides the autosummary address of 10.0.0.0
so that 10.2.0.0 is advertised out interface Gigabit Ethernet port 2, and 10.0.0.0 is not advertised.
Switch(config)# router rip
Switch(config-router)# interface gi0/2
Switch(config-if)# no switchport
Switch(config-if)# ip address 10.1.5.1 255.255.255.0
Switch(config-if)# ip summary-address rip 10.2.0.0 255.255.0.0
Switch(config-if)# no ip split-horizon
Switch(config-if)# exit
Switch(config)# router rip
Switch(config-router)# network 10.0.0.0
Switch(config-router)# neighbor 2.2.2.2 peer-group mygroup
Switch(config-router)# end
Configuring OSPF
Open Shortest Path First (OSPF) is an Interior Gateway Protocol (IGP) designed expressly for IP networks, supporting IP
subnetting and tagging of externally derived routing information. OSPF also allows packet authentication and uses IP
multicast when sending and receiving packets.
This section briefly describes how to configure OSPF. For a complete description of the OSPF commands, see the OSPF
documents listed in the
Note: OSPF classifies different media into broadcast, nonbroadcast multiaccess (NBMA), or point-to-point networks.
Broadcast and nonbroadcast networks can also be configured as point-to-multipoint networks. The switch supports all
these network types.
The Cisco implementation conforms to the OSPF Version 2 specifications with these key features:

Definition of stub areas is supported.
Related Documents, page
Purpose
Enter global configuration mode.
Enter interface configuration mode, and specify the
Layer 3 interface to configure.
Enable the interface if necessary. By default, UNIs
and ENIs are disabled and NNIs are enabled.
Configure the IP address and IP subnet.
Configure the IP address to be summarized and the
IP network mask.
Disable split horizon on the interface.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
924.
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