I am doing mutual redistribution with the following:
router eigrp 10
redistribute bgp 64586 metric 155000 10 255 1 4470 route-map bgp-to-eigrp
network 10.134.0.0
auto-summary
! redist bgp routes with route-map and metric
router bgp 64586
no synchronization
bgp log-neighbor-changes
redistribute eigrp 10 route-map eigrp-to-bgp
neighbor 10.134.254.253 remote-as 209
neighbor 10.134.254.253 ebgp-multihop 2
neighbor 10.134.254.253 update-source Loopback0
neighbor 10.134.254.253 weight 40000
no auto-summary
!redist eigrp routes with route-map
access-list 1 permit 10.134.99.252 0.0.0.0
! rtdallas-7206
access-list 2 permit 10.134.99.251 0.0.0.0
! rtapple
access-list 3 permit 10.134.99.247 0.0.0.0
! rtlb
access-list 4 permit 10.134.99.246 0.0.0.0
! rtbrun
access-list 5 permit 10.134.99.245 0.0.0.0
! rteb
access-list 6 permit 10.134.99.244 0.0.0.0
! rtdal-fg
access-list 7 permit 10.134.99.241 0.0.0.0
! rtwest
access-list 8 permit 10.134.99.236 0.0.0.0
! rt6513-nw
access-list 9 permit 10.134.99.233 0.0.0.0
! rt6513-d
access-list 10 permit 10.134.99.254 0.0.0.0
! rt6513-3
access-list 11 permit 10.134.99.243 0.0.0.0
! rtgac4
access-list 12 permit 10.134.99.239 0.0.0.0
! rtgac-old
route-map eigrp-to-bgp deny 10
match ip next-hop 1
!
route-map eigrp-to-bgp deny 11
match ip next-hop 2
!
route-map eigrp-to-bgp deny 12
match ip next-hop 3
!
route-map eigrp-to-bgp deny 13
match ip next-hop 4
!
route-map eigrp-to-bgp deny 14
match ip next-hop 5
!
route-map eigrp-to-bgp deny 15
match ip next-hop 6
!
route-map eigrp-to-bgp deny 16
match ip next-hop 7
!
route-map eigrp-to-bgp deny 17
match ip next-hop 8
!
route-map eigrp-to-bgp deny 18
match ip next-hop 9
!
route-map eigrp-to-bgp permit 30
set tag 10
!set tag to deny later in redist to bgp
route-map bgp-to-eigrp deny 10
match tag 10
!deny routes learned from eigrp
!
route-map bgp-to-eigrp permit 20
set tag 64586
set ip next-hop 10.134.92.254
This seems to work except for routes in EIGRP at another router.
rt6513-3 is running both protocols and doing the redistribution. It also has
the external BGP session. On this router the EIGRP entry for the BGP
learned route is
P 10.134.60.0/24, 1 successors, FD is 18944, tag is 64586
via Redistributed
and the route table entry is
6513-3#sh ip ro 10.134.60.0
Routing entry for 10.134.60.0/24
Known via "bgp 64586", distance 20, metric 0
Tag 209, type external
Redistributing via eigrp 10
Advertised by eigrp 10 metric 155000 10 255 1 4470 route-map bgp-to-eigrp
bgp 64586 (self originated)
Last update from 10.134.254.253 01:20:42 ago
Routing Descriptor Blocks:
* 10.134.254.253, from 10.134.254.253, 01:20:42 ago
Route metric is 0, traffic share count is 1
AS Hops 2
Route tag 209
When I go to another router that is running EIGRP only (rt6513-2n) the EIGRP
topo entry is
P 10.134.60.0/24, 1 successors, FD is 864000
via 10.134.92.244, Vlan92
via 10.134.92.254, Vlan92
The metric is now the same as the metric for the other route that is learned
natively in EIGRP from a 3rd router (rtgac).
I changed the delay on rtgac to try to force the BGP learned route to have a
higher metric, but what happened is both routes have the new higher metric in
rt6513-2
before the change they both showed 858880.
The metrics for these should be calculated from these values
rtgac rt6513-3
155000 44210
10 20
255 255
1 5
4470 1500
If I shut down the interface for the route on rtgac I get this on (6513-2n)
P 10.134.60.0/24, 1 successors, FD is 19200, tag is 64586
via 10.134.92.254, Vlan92
If I no shut the interface it goes back to this
P 10.134.60.0/24, 1 successors, FD is 864000
via 10.134.92.244, Vlan92
via 10.134.92.254, Vlan92
