RE: originate default rip route only when 2 interfaces are down

From: Mohmmad, Imran (Imran.Mohmmad@amd.com)
Date: Fri Jun 22 2007 - 20:02:53 ART

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Hi,

I try the same as per the below topology

R1---(RIP)-------R2--------R3

and I am able to achieve the same when the both non RIP enabled
interface on R2(Serial1/2 and loopback 900) are down it will not
generate any default route into RIP Domain.

R3#
interface Serial1/2
ip address 200.200.200.3 255.255.255.0
serial restart-delay 0
no dce-terminal-timing-enable

R2#

interface Loopback900
ip address 90.90.90.90 255.255.255.0

!
interface FastEthernet0/0
no ip address
duplex half
!
interface Serial1/0
ip address 100.100.100.2 255.255.255.0
serial restart-delay 0
no dce-terminal-timing-enable

interface Serial1/2
ip address 200.200.200.2 255.255.255.0
shutdown
serial restart-delay 0
no dce-terminal-timing-enable

router rip
version 2
network 100.0.0.0
default-information originate route-map test1
no auto-summary

access-list 1 permit 200.200.200.0 0.0.0.255
access-list 1 permit 90.90.90.0 0.0.0.255
!
route-map test1 permit 10
match ip address 1
set tag 255
!
route-map test1 permit 20
match tag 255

R2#sh ip route
Codes: C - connected, S - static, 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
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static
route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

C 200.200.200.0/24 is directly connected, Serial1/2
     1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback1
     100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Serial1/0
     90.0.0.0/24 is subnetted, 1 subnets
C 90.90.90.0 is directly connected, Loopback900

R1#

interface Serial1/0
description ****Connected to R2******
ip address 100.100.100.1 255.255.255.0
serial restart-delay 0
no dce-terminal-timing-enable

router rip
version 2
network 100.0.0.0
no auto-summary

R1#sh ip route
Codes: C - connected, S - static, 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
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static
route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is 100.100.100.2 to network 0.0.0.0

R 200.200.200.0/24 [120/1] via 100.100.100.2, 00:00:20, Serial1/0
100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Serial1/0
R* 0.0.0.0/0 [120/1] via 100.100.100.2, 00:00:20, Serial1/0

when both the interfaces are down on R2 below is the output of routing
table:-

Router R2 routing table is as follows:-

Gateway of last resort is not set

1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback1
100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Serial1/0

and Router R1 is not having any default route generated by RIP

Gateway of last resort is not set

100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Serial1/0

Regards,
Imran

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
michel
Sent: Friday, June 22, 2007 2:14 PM
To: cisco efiko; Cisco certification
Subject: Re: originate default rip route only when 2 interfaces are down

thanks but i don't see how this would work only ''when an interface is
going
down''
the route map let me match interface, metric and so on.

I just want to originate a default route into rip when I lost my
specific
routes because the interfaces are down.

On 6/22/07, cisco efiko <ciscoefiko@googlemail.com> wrote:
>
> Michel,
>
> Try conditional default-information originate with a route-map under
RIP.
> Let me know if that works.
>
> Regards,
>
> E
>
>
> On 6/22/07, michel <ccie.rs.lab@gmail.com> wrote:
>
> > Hello,
> >
> > I want to originate a default route in my rip network when 2
interfaces
> > (non
> > rip) are down and not advertised anymore. What would be a proper way
to
> > achieve that ?
> >
> > Thanks,
> >
> > Michel
> >
> >

Next message: Antonio Soares: "TCP Intercept Question"
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Maybe in reply to: michel: "originate default rip route only when 2 interfaces are down"
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