From: yakout yakout (yesmat@xxxxxxxxxxxxxx)
Date: Sun Aug 18 2002 - 09:04:24 GMT-3
Gents,
It is got to work as expected. you should be able to see O E2 route coming
from R9.
Maybe your OSPF neigbors are not forming.
I just tested it and it works as expected.
Yakout
#9893
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Colin Barber
Sent: Sunday, August 18, 2002 9:01 PM
To: Volkov, Dmitry (Toronto - BCE); ccielab@groupstudy.com
Subject: RE: Are EIGRP external routes preferable than OSPF ext ??
After a bit more testing it seems that the distance for external routes is
not being taken into account properly, it seems to be looking at the
internal distance.
If I set the distance of EIGRP to 140 on R11, when I bounce the Ethernet
interface the EIGRP routes are installed for a short time until OSPF has
converged and then the routes are replace by OSPF, which is correct. However
if the distance is left a 90 the EIGRP routes remain even though they are
external and show a distance of 170 in the routing table.
The problem only occurs when the EIGRP routes a available first. Then when
the OSPF routes are available the routing table is not updated correctly.
When a clear ip route * is performed the routes are available from both
EIGRP and OSPF at the same time and the router then makes the correct
choice.
I have tested this with R11 on 11.3 IOS and the same thing happens.
Colin
-----Original Message-----
From: Volkov, Dmitry (Toronto - BCE) [mailto:dmitry_volkov@ca.ml.com]
Sent: 17 August 2002 23:46
To: 'ccielab@groupstudy.com'
Subject: Are EIGRP external routes preferable than OSPF ext ??
Hi I have simple setup:
R9:(e0) (IGRP) ------(e0/0)R10(e1/0) (IGRP, EIGRP, OSPF)----(e0)R11 (EIGRP,
OSPF)
There is redistr between IGRP,OSPF and EIGRP on R10.
So, routes from R9 are redist to EIGRP and to OSPF on R10 and received on
R11 (via both ospf and eigrp)
Somehow I see R9 loopbacks routes on R11 as learned via EIGRP (external),
but OSPF...
D EX has distance 170, OSPF 110, but there are no ospf routes in routing
table on R11.
However, they are in database as external. When I stop EIGRP on R11, I can
see OSPF E2 routes there.
If I stop ospf running on e0/0 (R10) - everything is OK - R11 see all
external routes as O E2.
Why ??
R9:
!
interface Loopback0
ip address 172.16.2.1 255.255.255.0
!
interface Loopback1
ip address 172.16.3.1 255.255.255.0
!
interface Loopback2
ip address 172.16.4.1 255.255.255.0
!
interface Ethernet0
ip address 172.16.1.1 255.255.255.0
!
router igrp 10
network 172.16.0.0
R10:
interface Ethernet0/0
ip address 172.16.1.2 255.255.255.0
no ip directed-broadcast
!
interface Ethernet1/0
ip address 172.16.5.2 255.255.255.0
no ip directed-broadcast
!
router eigrp 10
redistribute ospf 10 metric 10000 100 255 1 1500
network 172.16.0.0
!
router ospf 10
redistribute igrp 10 subnets
redistribute eigrp 10 subnets
network 172.16.1.0 0.0.0.255 area 0
network 172.16.5.0 0.0.0.255 area 0
!
router igrp 10
redistribute ospf 10 metric 10000 100 255 1 1500
passive-interface Ethernet1/0
network 172.16.0.0
R11
!
interface Ethernet0
ip address 172.16.5.1 255.255.255.0
!
router eigrp 10
network 172.16.0.0
auto-summary
no eigrp log-neighbor-changes
!
router ospf 10
log-adjacency-changes
network 172.16.0.0 0.0.255.255 area 0
r11#sh ip ro
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 5 subnets
D EX 172.16.4.0 [170/435200] via 172.16.5.2, 00:17:21, Ethernet0
C 172.16.5.0 is directly connected, Ethernet0
D 172.16.1.0 [90/307200] via 172.16.5.2, 00:35:28, Ethernet0
D EX 172.16.2.0 [170/435200] via 172.16.5.2, 00:17:21, Ethernet0
D EX 172.16.3.0 [170/435200] via 172.16.5.2, 00:17:21, Ethernet0
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