From: Peter Van Oene (pvo@xxxxxxxxxxxx)
Date: Mon Apr 02 2001 - 14:19:35 GMT-3
What happens if you change the summary address to a level 1 or level 2 only rou
te. The L1/L2 in the context of prefix reachability doesn't make a lot of sens
e to me.
Pete
*********** REPLY SEPARATOR ***********
On 4/2/2001 at 11:25 AM tom cheung wrote:
>Hi All,
>I'm stumped with an IS-IS route summarization problem and needed some
>help.
>Here's the physical connectivity:
>
> area1 isis area2 rip
> ----------r3------------r4------------r5--
> isis vlsm e0 s1
>
>I want to summarize the different isis area 1 subnets and inject them into
>RIP. I've tried using "summary-address a.b.c.d w.x.y.z" under router isis
>in R4. But the summary route does not show up in r4's route table and no
>routes are injected into RIP's domain when I try to redistribute between
>the
>two routing protocols. What seems to be the problem??
>
>Config for R4:
>router isis
>summary-address 152.1.1.0 255.255.255.0 level-1-2
>redistribute rip metric 1 metric-type internal level-2
>net 00.0002.0000.0000.0040.00
>!
>router rip
>redistribute isis level-1-2 metric 2
>passive-interface BRI0
>passive-interface Ethernet0
>network 152.1.0.0
>default-metric 2
>
>Route table:
>r4# sh ip ro
>Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate
>default
> U - per-user static route, o - ODR
>
>Gateway of last resort is not set
>
> 152.1.0.0/16 is variably subnetted, 8 subnets, 5 masks
>i L2 152.1.1.128/25 [115/30] via 152.1.1.65, Ethernet0
>i L2 152.1.1.8/30 [115/20] via 152.1.1.65, Ethernet0
>i L2 152.1.1.1/32 [115/20] via 152.1.1.65, Ethernet0
>i L2 152.1.1.2/32 [115/30] via 152.1.1.65, Ethernet0
>C 152.1.2.0/24 is directly connected, Serial1
>i L2 152.1.1.4/30 [115/20] via 152.1.1.65, Ethernet0
>R 152.1.4.0/24 [120/1] via 152.1.2.2, 00:00:04, Serial1
>C 152.1.1.64/26 is directly connected, Ethernet0
>r4#
>
>
>
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