Mutual redistribution between ISIS and EIGRP using route-maps

From: Ivan (limmti@yahoo.com.sg)
Date: Sun Aug 10 2003 - 14:24:36 GMT-3


Hi,

Need some advice on multipoint redistribution between ISIS and EIGRP.

R5 and R6 and doing mutual redistribution between ISIS and EIGRP. IN order to prevent loops, I try it out using route-maps and tagging.

However when I set it up, the routing loop issue tends to exist on one router. When I clear the IP routing table on the routing loop router, the problem oscilate to the other router

I am wondering where is my mistake and really need some advice.

My config for the route-map and tagging is as follows:

R5

----
router eigrp 256
redistribute connected route-map con2ei
redistribute isis level-2 route-map is2ei
network 135.61.100.0 0.0.0.127
network 192.168.5.5 0.0.0.0
default-metric 1544 100 254 1 1500
no auto-summary
no eigrp log-neighbor-changes
!
router isis
redistribute connected route-map con2is
redistribute eigrp 256 route-map ei2is
net 49.0056.0000.0000.5555.00
!
ip kerberos source-interface any
ip classless
ip http server
!
!
ip access-list standard con2ei
permit 135.61.200.0 0.0.0.31
ip access-list standard con2is
permit 192.168.5.5
permit 135.61.25.0 0.0.0.3
permit 135.61.100.0 0.0.0.127
ip access-list standard ei2is
permit 192.168.2.2
permit 192.168.1.1
permit 192.168.4.4
permit 135.61.12.0 0.0.0.63
permit 135.61.10.0 0.0.0.255
permit 135.61.24.0 0.0.0.15
permit 135.61.40.0 0.0.0.255
ip access-list standard is2ei
permit 192.168.7.7
permit 192.168.8.8
permit 192.168.9.9
permit 135.61.78.0 0.0.0.3
permit 135.61.87.0 0.0.0.3
permit 135.61.80.0 0.0.0.255
permit 135.61.90.0 0.0.0.255
route-map is2ei deny 10
match tag 170
!
route-map is2ei permit 20
match ip address is2ei
set tag 115
!
route-map ei2is deny 10
match tag 115
!
route-map ei2is permit 20
match ip address ei2is
set tag 170
!
route-map con2is permit 10
match ip address con2is
!
route-map con2ei permit 10
match ip address con2ei
!

R6 ---- router eigrp 256 redistribute connected route-map con2ei redistribute isis level-2 route-map is2ei network 135.61.100.0 0.0.0.127 network 192.168.6.6 0.0.0.0 default-metric 1544 100 254 1 1500 no auto-summary no eigrp log-neighbor-changes ! router isis redistribute connected route-map con2is redistribute eigrp 256 route-map ei2is net 49.0056.0000.0000.6666.00 ! ip kerberos source-interface any ip classless ip http server ! ! ip access-list standard con2ei permit 135.61.200.0 0.0.0.31 ip access-list standard con2is permit 192.168.6.6 permit 135.61.100.0 0.0.0.127 ip access-list standard ei2is permit 192.168.2.2 permit 192.168.1.1 permit 192.168.4.4 permit 135.61.12.0 0.0.0.63 permit 135.61.10.0 0.0.0.255 permit 135.61.24.0 0.0.0.15 permit 135.61.40.0 0.0.0.255 ip access-list standard is2ei permit 192.168.7.7 permit 192.168.8.8 permit 192.168.9.9 permit 135.61.78.0 0.0.0.3 permit 135.61.87.0 0.0.0.3 permit 135.61.80.0 0.0.0.255 permit 135.61.90.0 0.0.0.255 route-map is2ei deny 10 match tag 170 ! route-map is2ei permit 20 match ip address is2ei set tag 115 ! route-map ei2is deny 10 match tag 115 ! route-map ei2is permit 20 match ip address ei2is set tag 170 ! route-map con2is permit 10 match ip address con2is ! route-map con2ei permit 10 match ip address con2ei !

Thanks Ivan

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