Re: selective routing on interface

From: Tharak Abraham (tharakabraham@gmail.com)
Date: Wed Mar 18 2009 - 07:28:52 ART


Duh...what a PJ dude .. :P
BR,
Tharak

On Wed, Mar 18, 2009 at 11:02 AM, Nadeem Ansari
<nadeem.ansari574@gmail.com>wrote:

> The next is to shutdown all your interfaces :) juzz kiddin
>
> Regards
> Nadeem
>
> On Wed, Mar 18, 2009 at 3:30 PM, Tharak Abraham <tharakabraham@gmail.com
> > wrote:
>
>> Thanks Nadeem, i understood your point ! Though not a straightforward
>> filtering, its an option too !
>>
>> I wonder if distribute-list and offset-list are the only two methods?
>>
>>
>> Best Regards,
>> Tharak Abraham
>>
>>
>>
>> On Wed, Mar 18, 2009 at 10:44 AM, Nadeem Ansari <
>> nadeem.ansari574@gmail.com> wrote:
>>
>>> offset-list will manipulate the metric by incrementing hop count
>>> you can have multiple options with offset-list either you can use that
>>> route as a backup (higher metric) or you can permanently restrict it from
>>> entering in to routing table by manipulating its hop count as 16
>>> (unreachable) :)
>>>
>>> Finally all depends on the question asked and person's ease
>>>
>>> Regards
>>> Nadeem
>>>
>>> On Wed, Mar 18, 2009 at 3:33 AM, Tharak Abraham <
>>> tharakabraham@gmail.com> wrote:
>>>
>>>>
>>>> Yes !
>>>>
>>>> @ Backbone and Naveed :- I tried out the options with access lists and
>>>> prefix lists with the distribute list under the routing process
>>>> to make it work.
>>>> Are there more methods ? Basically i wanted to explore all other
>>>> possibilities.
>>>>
>>>> @ Nadeem :- Dint really understand how offset list would help here as
>>>> the objective is to deny the routes being sourced?
>>>> If you could explain your point?
>>>>
>>>> Thanks a lot ppl.
>>>>
>>>> BR,
>>>> Tharak.
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Mar 17, 2009 at 11:21 AM, Nadeem Ansari <
>>>> nadeem.ansari574@gmail.com> wrote:
>>>>
>>>>> Yeah but if you wanna use that route as a backup path then you wont be
>>>>> able to achieve that, on the other hand offset-list gives you that option
>>>>> also :)
>>>>>
>>>>> Regards
>>>>> Nadeem
>>>>>
>>>>> On Tue, Mar 17, 2009 at 3:11 PM, backbone systems <
>>>>> backbone.systems@gmail.com> wrote:
>>>>>
>>>>>> U can use distribute list in router mode to deny a particular route
>>>>>> from a particular interface.....
>>>>>>
>>>>>> router rip
>>>>>> distribute-list 1 out serial 1/0
>>>>>> distribute-list 2 out serial 2/0
>>>>>>
>>>>>> access-list 1 deny 3.0.0.0 0.255.255.255
>>>>>> access-list 1 permit any
>>>>>> access-list 2 deny 33.0.0.0 0.255.255.255
>>>>>> access-list 2 permit any
>>>>>>
>>>>>> HTH
>>>>>>
>>>>>> On Tue, Mar 17, 2009 at 11:20 AM, Nadeem Ansari
>>>>>> <nadeem.ansari574@gmail.com> wrote:
>>>>>> > Hi,
>>>>>> >
>>>>>> > 1) You can use offset-list while increasing hop count for a
>>>>>> perticular route
>>>>>> > learned from an interface.
>>>>>> >
>>>>>> > Regards
>>>>>> > Nadeem
>>>>>> > On Tue, Mar 17, 2009 at 3:31 AM, Tharak Abraham <
>>>>>> tharakabraham@gmail.com>wrote:
>>>>>> >
>>>>>> >> Router R3 advertising RIPv2 routes 3.0.0.0/8 and 33.0.0.0/8 out
>>>>>> two
>>>>>> >> interfaces s1/0 (frame relay) and s2/0(serial)
>>>>>> >> As Both these interfaces are connected to the same router, theres a
>>>>>> need to
>>>>>> >> filter redundant routes !
>>>>>> >>
>>>>>> >> What are the available methods by which i could permit 3.0.0.0/8out of
>>>>>> >> s2/0
>>>>>> >> and 33.0.0.0/8 out of s1/0 respectively and selectively ?
>>>>>> >> Please refer the diag below.
>>>>>> >>
>>>>>> >> 33.0.0.0/8 (lo1)
>>>>>> >> |
>>>>>> >> (13.0.0.3) s2/0 -------- R3 (RIPv2)------- s1/0 (12.0.0.3)
>>>>>> >> |
>>>>>> >> 3.0.0.0/8 (lo2)
>>>>>> >>
>>>>>> >>
>>>>>> >> BR,
>>>>>> >> Tharak.
>>>>>> >>
>>>>>> >>
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>>>>>> >>
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