From: Cockcroft, Lance (lc3881@att.com)
Date: Mon May 12 2008 - 10:43:35 ART
By default, RIP advertises all routes in the routing table out all RIP
enabled interfaces. So using the passive interface command only prevents
RIP from advertising anything out that interface. RIP will continue to
advertise ALL known routes out the other interfaces (except networks
learned on said interface).
What you want to do is filter the RIP updates using a distribution list
or offset list to increase the metric to 16. This will prevent the route
from being advertised to other routers.
http://www.cisco.com/en/US/docs/ios/12_4/ip_route/configuration/guide/ri
pconfg.html#wp1000992
--Lance
Passive interface prevents RIP from running on the interface.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
mac ccie
Sent: Monday, May 12, 2008 2:17 AM
To: Cisco certification
Subject: Re: disabling RIP on an interface, is it possible??
> Hi Scott,
>
> My question was different. does passive interface on interface mean
that
> RIP is not running on that interface? I thought it just mean that do
not
> advertize RIP updates on that interface.
>
> Looks like my topology diagram was not clear initialy.
>
> R5 fa0/1 has no passive interface and R5 s0/1 has passive interface.
R5
> still advertise s0/1 network to Fa0/1 connected RIP routers. Does it
imply
> that I am not running RIP on s0/1?
>
> I think I am still running RIP on R5 s0/1 because I see this network
> connected to s0/1 on on other RIP enabled routers. In RIP it is not
possible
> to say that advertise 10.1.0.0 but not 10.2.0.0 out non passive
interface.
> perhaps distribute list is the answer for this task?
>
> Thanks,
> Mac
>
>
> On 5/12/08, Scott Morris <swm@emanon.com> wrote:
>>
>> Isn't that what "passive-interface" was designed for?
>>
>> Scott
>>
>> -----Original Message-----
>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
>> mac
>> ccie
>> Sent: Monday, May 12, 2008 1:47 AM
>> To: Cisco certification
>> Subject: disabling RIP on an interface, is it possible??
>>
>> Hello GS,
>>
>> is it possible to disable running RIP on an interface if it is part
of
>> major
>> network command configured? This is from IE lab vol2-task 4.8. It
says "Do
>> not enable RIP on any other interface".
>>
>> ----------(136.1.57.5/24)fa0/1 R5 s0/1
(136.1.45.0/24)-------------------
>> RIP OSPF
>>
>>
>> If I enable RIP on fa0/1 on R5 then it also start adverizing s0/1
>> interface
>> to other RIP enable routers. How do I answer this task?
>>
>>
>> Thanks,
>> Mac
>>
>>
>>
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