From: Hobbs (deadheadblues@gmail.com)
Date: Thu Dec 04 2008 - 00:19:28 ARST
Thanks. What do you guys think about that other question in the FAQ where it
lists a different order?
http://www.ciscosystems.com/en/US/tech/tk365/technologies_q_and_a_item09186a00800949e8.shtml#fil
Do you think this is a special case or something?
On Wed, Dec 3, 2008 at 6:57 PM, Jason Madsen <madsen.jason@gmail.com> wrote:
> It's right here guys per Cisco BGP Config' Guide:
>
>
> http://www.cisco.com/en/US/docs/ios/iproute/configuration/guide/irp_bgp_external_sp_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1054131
>
> Outbound:
> 1. Distribute-list
> 2. IP Prefix-list
> 3. Filter-List, As-path Access-List, or IP Policy
> 4. Route-Map
>
> Inbound:
> 1. Route-Map
> 2. Filter-List, As-path Access-List, or IP Policy
> 3. IP Prefix-List
> 4. Distribute-List
>
> Jason
>
>
>
>
> On Wed, Dec 3, 2008 at 6:11 PM, Piotr <usaccie@gmail.com> wrote:
>
>> It looks like this is the correct order:
>> For outbound updates the order of preference is:
>> 1. prefix-list, distribute-list
>> 2. filter-list
>> 3. route-map
>>
>> On Wed, Dec 3, 2008 at 7:10 PM, Hobbs <deadheadblues@gmail.com> wrote:
>>
>> > Hello,
>> >
>> > Please reference:
>> >
>> >
>> http://www.ciscosystems.com/en/US/tech/tk365/technologies_q_and_a_item09186a00800949e8.shtml#
>> >
>> > As far as I can tell the order of operations for route filtering are
>> (This
>> > is the 3rd question on the FAQ):
>> >
>> > For inbound updates the order of preference is:
>> > 1. route-map
>> > 2. filter-list
>> > 3. prefix-list, distribute-list
>> >
>> > For outbound updates the order of preference is:
>> > 1. prefix-list, distribute-list
>> > 2. filter-list
>> > 3. route-map
>> >
>> > However, further down is this question and answer (5th from the bottom):
>> >
>> > Q. How can I filter all IP routes advertised to a BGP neighbor except
>> the
>> > default route 0.0.0.0/0?
>> > A. The specific routes can be filtered if you use inbound
>> filter-list,
>> > distribute-list, prefix-list and route-map all at the same time for the
>> > same
>> > bgp neighbor. This is the order of operation:
>> > 1. Filter-list
>> > 2. Router-map
>> > 3. Distribute-list (or) prefix-list
>> >
>> > Is this last question conflicting the previous one?
>> > What's the difference between only allowing a default route as opposed
>> to
>> > only allowing certain other routes?
>> >
>> > thank you
>> >
>> >
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>> >
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>>
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>>
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