I have a chain of three routers, a b c. Router a and c are the ones
redistributing statics into eigrp. Router a has a tracking object on
the static route, tracking icmp reachabilty to another router, (not a
b or c).
To test I am removing the ip on this other router, tracked object goes
down, static route disapears on router a. Re-add ip address, tracked
object comes up, static route re-added, but router c does not accept
this route into it's topology table.
Just checked by using passive int between a and b. On re-
establichment, router c can still not see this route
Sent from my iPhone
On 8 Mar 2010, at 15:05, garry baker <[email protected]> wrote:
this is working when i down the eigrp neighbor with passive-
interface/no passive-interface on the eigrp neighbor, (see below if
i am understanding what you are doing), but you say that you "down
the eigrp route onward in the network" how are you taking this route
out of the eigrp table and putting it back in, as where i am taking
down the neighborship and bringing it back up...
also running this in gns3, with Cisco IOS Software, 7200 Software
(C7200-ADVSECURITYK9-M), Version 12.4(22)T, RELEASE SOFTWARE (fc1)
R1#sh ip ro
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Serial1/0
25.0.0.0/32 is subnetted, 1 subnets
D 25.25.25.25 [90/2297856] via 1.1.1.2, 00:00:41, Serial1/0
R1#
*Mar 8 17:55:31.399: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 25: Neighbor
1.1.1.2 (Serial1/0) is down: Interface Goodbye received
*Mar 8 17:55:31.399: RT: delete route to 25.25.25.25 via 1.1.1.2,
eigrp metric [90/2297856]
*Mar 8 17:55:31.403: RT: no routes to 25.25.25.25
*Mar 8 17:55:31.403: RT: NET-RED 25.25.25.25/32
*Mar 8 17:55:31.403: RT: delete subnet route to 25.25.25.25/32
*Mar 8 17:55:31.407: RT: NET-RED 25.25.25.25/32
*Mar 8 17:55:31.407: RT: add 25.25.25.25/32 via 1.1.1.2, static
metric [210/0]
*Mar 8 17:55:31.407: RT: NET-RED 25.25.25.25/32
R1#sh ip route
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Serial1/0
25.0.0.0/32 is subnetted, 1 subnets
S 25.25.25.25 [210/0] via 1.1.1.2
R1#
*Mar 8 17:56:56.463: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 25: Neighbor
1.1.1.2 (Serial1/0) is up: new adjacency
*Mar 8 17:56:58.579: RT: closer admin distance for 25.25.25.25,
flushing 1 routes
*Mar 8 17:56:58.583: RT: NET-RED 25.25.25.25/32
*Mar 8 17:56:58.583: RT: add 25.25.25.25/32 via 1.1.1.2, eigrp
metric [90/2297856]
*Mar 8 17:56:58.587: RT: NET-RED 25.25.25.25/32
R1#sh ip route
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Serial1/0
25.0.0.0/32 is subnetted, 1 subnets
D 25.25.25.25 [90/2297856] via 1.1.1.2, 00:00:10, Serial1/0
On Mon, Mar 8, 2010 at 1:34 PM, Mark Beynon <[email protected]>
wrote:
I have lab'd up a work solution in GNS, and it is not behaving how I
would expect. This has lead me to question my understanding some what.
The scenario, I have a router that learns the host route
25.25.25.25/32 from eigrp. I then install a static to 25.25.25.25/32
on this router in the othe direction, with and AD of 210.
As expected the Eigrp route makes it into the route table. When I
down the eigrp route onward in the network, it is removed from Eigrp,
and my static springs into life.
But... When I reintroduce the route, the static with worse AD stays in
the route table, despite it learning a route with better AD.
I have run a debug and confirmed that eigrp is sending the update to
this router. there is something I'm missing, and I think it is
understanding over config...
Any ideas?
Sent from my iPhone
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