EIGRP Notes – Route Filtering

As always, correction are encouraged.

You can configure an EIGRP router to filter routes from being advertised or from being accepted.

Objective:  Filter out the route to 10.0.254.1/32 from being advertised to the rest of the network via EIGRP.

ip prefix-list PRE1 deny 10.0.254.1/32 ip prefix-list PRE1 permit 0.0.0.0/0 le 32 ! router eigrp 1 distribute-list prefix PRE1 out -- OR -- ip access-list standard ACL1 deny 10.0.254.1 0.0.0.255 permit any ! router eigrp 1 distribute-list ACL1 out

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ip prefix-list PRE1 deny 10.0.254.1/32 ip prefix-list PRE1 permit 0.0.0.0/0 le 32 ! router eigrp 1 distribute-list prefix PRE1 out   -- OR --   ip access-list standard ACL1 deny 10.0.254.1 0.0.0.255 permit any ! router eigrp 1 distribute-list ACL1 out

Aaron Conaway

I shake my head around sometimes and see what falls out. That's what lands on these pages.

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