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OSPF - Filtering External Routes

Per the IOS documentation, it looks like I can filter external routes when redistributing from one routing protocol into OSPF.

Would the following config be correct if I only wanted to allow the IP subnet 10.1.1.0 from EIGRP into my OSPF domain:

!

router eigrp 100

network 10.0.0.0

redistribute ospf 200

default-metric 1544 100 254 1 1500

!

router ospf 200

network 11.0.0.0 0.255.255.255 area 0

redistribute eigrp 100 subnets

distribute-list 10 out

!

access-list 10 permit 10.1.1.0

!

Thanks

  • Other Network Infrastructure Subjects
1 REPLY
Cisco Employee

Re: OSPF - Filtering External Routes

YES..10.1.1.0 network from eigrp 100 will be redistributed into OSPF with above config. But Any outbound routing update that was originally sourced from eigrp 100 is checked against access-list 10. Only routes that match a access-list 10 will be sent out. Pl. visit following link for that

http://www.cisco.com/warp/public/105/34.html

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