Redistributing eigrp into bgp

[starmanone]

I currently have a mpls wan with eigrp internal. Can someone post a simple config of redistributing eigrp into bgp with route-map for specfic routes to be redistributed.

thanks...

[mheusinger]

Hi there

You could use

router bgp 65000

redistribute eigrp 65432 route-map EIGRP2BGP

router eigrp 65432

redistribute bgp 65000 route-map bgp2eigrp

route-map EIGRP2BGP permit 10

match ip address prefix-list 90

route-map bgp2eigrp permit 10

match ip address prefix-list 100

set metric 1 2 3 4 5

ip prefix-list 90 permit 10.234.0.0/16 le 32

ip prefix-list 100 permit 10.1.0.0/16 le 32

Modify the prefix-lists to your needs.

Hope this helps

Martin

[starmanone]

Thanks for the reply. If i just need eigrp to bgp i would use the following commands:

router bgp 65000

redistribute eigrp 65432 route-map EIGRP2BGP

route-map EIGRP2BGP permit 10

match ip address prefix-list 90

ip prefix-list 90 permit 10.234.0.0/16 le 32

Dont i also need the routing metric commands???

thanks

[mheusinger]

Hi,

to redistribute EIGRP into BGP you need no metric commands. The BGP attribute MED (metric) will be set to the eigrp metric in the routing table automatically.

Hope this helps

Martin

[s.vyas]

I have a question for you...

In the MPLS cloud your routes are learnt via BGP. Why u want filter MPLS - BGP routes getting redistributed in to EIGRP?

[mheusinger]

Hi,

mutual redistribution in several poinnts for redundancy can easily result in routing loops. So learning through BGP on one router in a location what you told BGP on the other router in the same location is not a good idea.

The second issue would be protection from SP misconfiguration. Don´t let him insert stuff that you are sure could never be there.

In both cases BGP2EIGRP filters could be handy.

Hope this helps

Martin