To simulate this we can simply add a new subnet on any routers in X-Corp network and add it to OSPF: X1(config)#interface loopback1 With this command, MBG-HO-BDR router can now see all the OSPF routes in X-Corp network as a BGP route:ġ0.0.0.0/8 is variably subnetted, 9 subnets, 3 masksī 10.1.1.0/24 via 10.0.254.2, 00:05:30ī 192.168.0.0/24 via 10.0.254.2, 00:05:30Īlso, everytime a new subnet is added to OSPF in X-Corp network, MBG network will automatically learn this route in BGP. RouterX(config-router)#redistribute ospf 1 Since the OSPF configuration in RouterX is using process-id 1, then the configuration to redistribute OSPF route into BGP in RouterX is as follows: RouterX(config)#router bgp 65050

The command to redistribute OSPF route into BGPin Cisco IOS Router is “ redistribute ospf ” and can be performed under BGP configuration section. How to Redistribute OSPF Route into BGP in Cisco IOS Router MBG’s administrator wants to keep the BGP configuration as simple as possible and avoid adding new configuration line one by one to advertise all subnets that created in the X-Corp network. MBG has placed their Cisco IOS router named “ RouterX” on X-Corp’s datacenter and configure it to perform eBGP peering with the border router in MBG’s datacenter, named MBG-HO-BDR. In this scenario, a company named MustBeGeek Enterprise (or “ MBG” for short) has just acquire a company named X-Corp and as part of the acquisition they have to integrate their network. This article explains the command to Redistribute OSPF Route into BGP in Cisco IOS Router by using an example scenario below:

But some specific network deployment scenario requires us to redistribute an IGP routes like OSPF or EIGRP into BGP instead of advertising the subnet using network command in BGP. Usually it is not a best practice to perform redistribution especially in BGP.

Eigrp to bgp redistribution timers