to see them as they cam from Cat4? do you mean see the update source as Cat4
'show ip protocol' will show the update source and if you use unicast
neighbors (passive default all the intefaces to keep the multicast from
working also) with split horizon on Cat4 the updates will pass through and
come from Cat4 but the 'show ip route' will still show the next-hop as BB3

I do not know of a next-hop-self command for rip, but you could use a
summary address from Cat4?

R8#sh ip protocols
Routing Protocol is "rip"
  Outgoing update filter list for all interfaces is not set
  Incoming update filter list for all interfaces is not set
  Sending updates every 30 seconds, next due in 0 seconds
  Invalid after 180 seconds, hold down 180, flushed after 240
  Redistributing: rip
  Neighbor(s):
    110.99.200.40
  Default version control: send version 2, receive version 2
  Automatic network summarization is not in effect
  Maximum path: 4
  Routing for Networks:
    110.0.0.0
  Passive Interface(s):
    FastEthernet0/0
    FastEthernet0/1
    VoIP-Null0
  Routing Information Sources:
    Gateway         Distance      Last Update
    110.99.200.40        120      00:00:06
  Distance: (default is 120)
R8#sh ip route
Gateway of last resort is not set
     110.0.0.0/24 is subnetted, 1 subnets
C       110.99.200.0 is directly connected, FastEthernet0/0
     192.168.2.0/32 is subnetted, 1 subnets
R       192.168.2.2 [120/2] via 110.99.200.22, 00:00:19, FastEthernet0/0
     192.168.3.0/32 is subnetted, 1 subnets
R       192.168.3.3 [120/2] via 110.99.200.22, 00:00:19, FastEthernet0/0

Routing table after using ip summary on interface of CAT4:

R8#sh ip route
Gateway of last resort is not set
     110.0.0.0/24 is subnetted, 1 subnets
C       110.99.200.0 is directly connected, FastEthernet0/0
R    192.168.2.0/24 [120/2] via 110.99.200.40, 00:00:26, FastEthernet0/0
R    192.168.3.0/24 [120/2] via 110.99.200.40, 00:00:26, FastEthernet0/0


--
Garry L. Baker

"There is no 'patch' for stupidity." - www.sqlsecurity.com


On Thu, Aug 12, 2010 at 4:28 AM, marc abel <[email protected]> wrote:

> I have 3 routers/switches participating in rip as in the diagram attached.
> The goal is to make R8 see the routes advertised by bb3 as if they are from
> Cat4. I have disabled split horizon on the CAT4 vlan50 interface.
>
> Here is my R8 config
>
> router rip
>  version 2
>  redistribute ospf 1 metric 10
>  passive-interface default
>  no passive-interface FastEthernet0/0
>  network 110.0.0.0
>  distance 255
>  distance 121 110.99.200.22 0.0.0.0
>  distance 111 110.99.200.40 0.0.0.0
>  no auto-summary
>
> but when I do a show ip ro rip
>
> R8(config-router)#do show ip ro rip
>      110.0.0.0/8 is variably subnetted, 12 subnets, 4 masks
> R       110.99.104.104/32 [111/1] via 110.99.200.40, 00:00:10,
> FastEthernet0/0
>      192.168.2.0/32 is subnetted, 4 subnets
> R       192.168.2.2 [111/2] via 110.99.200.22, 00:00:10, FastEthernet0/0
> R       192.168.2.3 [111/2] via 110.99.200.22, 00:00:10, FastEthernet0/0
>
> R       192.168.2.1 [111/2] via 110.99.200.22, 00:00:10, FastEthernet0/0
> R       192.168.2.4 [111/2] via 110.99.200.22, 00:00:10, FastEthernet0/0
>
> What am I missing?
>
> Thank you,
>
> Marc
>
>
>
> _______________________________________________
> For more information regarding industry leading CCIE Lab training, please
> visit www.ipexpert.com
>
>
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit 
www.ipexpert.com

Reply via email to