From: jellyboy (jellyboy@gmail.com)
Date: Thu Feb 10 2005 - 07:52:44 GMT-3
R2 is connected to R4 via 172.16.24.0/24. R2 is the hub, R4 the spoke.
CDP is enabled.
R4 is advertising routes:
172.16.0.0/24 is subnetted, 1 subnets
C 172.16.24.0 is directly connected, Serial0/0
C 192.168.4.0/24 is directly connected, Loopback0
10.0.0.0/22 is subnetted, 1 subnets
C 10.1.4.0 is directly connected, FastEthernet0/0
o* 0.0.0.0/0 [160/1] via 172.16.24.2, 00:00:16, Serial0/0
R2 is advertising routes:
r2#sh ip route | include o
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is not set
C 172.16.32.0/24 is directly connected, Serial0/1
C 172.16.24.0/24 is directly connected, Serial0/0.24
C 172.16.2.0/24 is directly connected, FastEthernet0/0
C 172.16.123.0/29 is directly connected, Serial0/0.123
o 192.168.4.0/24 [160/1] via 172.16.24.4, 00:00:10, Serial0/0.24
o 10.1.4.0/22 [160/1] via 172.16.24.4, 00:00:10, Serial0/0.24
C 192.168.2.0/24 is directly connected, Loopback0
However all other routers that are attached to R2 can not see the
172.16.24.0/24 network advertised. ODR will advertise the routes off
R4, but not the directly connected 172.16.24.0/24.
I compensated for this with route-map ROUTE_172.16.24:
router eigrp 1
redistribute connected metric 56 100 255 1 1500 route-map ROUTE_172.16.24
redistribute odr metric 56 100 255 1 1500
network 172.16.32.0 0.0.0.255
network 172.16.123.0 0.0.0.7
no auto-summary
access-list 1 permit 172.16.24.0 0.0.0.255
!
route-map ROUTE_172.16.24 permit 10
match ip address 1
!
My question is *why* is this 172.16.24.0/24 route not advertised via
ODR? And, is it advisable to always add a route-map with ODR to
overcome this. Most of the literature do not seem to illustrate it,
but it is what I found in my configs.....
Cheers,
jellyboy
This archive was generated by hypermail 2.1.4 : Thu Mar 03 2005 - 08:51:18 GMT-3