REdistruting eigrp into ospf and avoiding loops

From: Cecil Jackson (cejackson1@comcast.net)
Date: Tue May 01 2007 - 15:25:18 ART


When I am doing mutual redistribution between OSPF and EIGRP how is best
wait to prevent from redistributing original OSPF routes and eigrp routes
back into each process? I am thinking using route route-maps but unable to
get to work correct.,

 

Should I need to match interfaces ?

 

 

                             Sw3

                             / \

                             / \

                ospf / \

                           / \

                        r1-----------r3 redistribute eigrp and ospf

                               eigrp

 

 

R1

!

router eigrp 1

 redistribute ospf 1 metric 1544 2000 255 1 1500 route-map ?

 network 3.3.45.1 0.0.0.0

 no auto-summary

 !

router ospf 1

 router-id 1.1.4.4

 log-adjacency-changes

 redistribute eigrp 1 subnets route-map ?

 network 1.1.4.4 0.0.0.0 area 23

 

!

route-map eigrpospf deny 10

 match tag 120

!

route-map eigrpospf permit 20

 set tag 90

!

route-map ospfeigrp deny 10

 match tag 90

!

route-map ospfeigrp permit 20

set tag 120

match interface #

 

 

 

R3

router eigrp 1

 redistribute ospf 1 metric 1544 2000 255 1 1500 route-map ?

 network 3.3.45.3 0.0.0.0

 no auto-summary

 !

router ospf 1

 router-id 1.1.5.5

 log-adjacency-changes

 redistribute eigrp 1 subnets route-map ?

 network 1.1.5.5 0.0.0.0 area 23

 

!

route-map eigrpospf deny 10

 match tag 120

!

route-map eigrpospf permit 20

 set tag 90

!

route-map ospfeigrp deny 10

 match tag 90

!

route-map ospfeigrp permit 20

set tag 110

 

thanks

 

cecil



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