From: ccie2be (ccie2be@nyc.rr.com)
Date: Mon Sep 06 2004 - 22:09:49 GMT-3
You could use a prefix list unless, for example, the lab said you couldn't.
That's exactly what prefix-lists were designed for.
HTH, Tim
----- Original Message -----
From: "Jonathan R. Charles" <jrcdehc@ameritech.net>
To: <ccielab@groupstudy.com>
Sent: Monday, September 06, 2004 9:02 PM
Subject: RE: ACL question
> This is going to sound pretty dumb, but why wouldn't you just use a prefix
> list?
>
>
> Jonathan
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Phil
> Sent: Monday, September 06, 2004 11:00
> To: Jonathan R. Charles
> Cc: ccielab@groupstudy.com
> Subject: Re: ACL question
>
> Jonathan,
>
> That's how the access-list behaves in the command
> "neighbor x.x.x.x distribute-list 101 out" under router bgp.
>
> Check this document:
> http://www.cisco.com/en/US/tech/tk365/tk80/technologies_tech_note09186a00801
> 310cb.shtml
>
> Phil
>
>
> On Mon, 6 Sep 2004 09:34:33 -0500, Jonathan R. Charles
> <jrcdehc@ameritech.net> wrote:
>> In BGP Case Studies, the following paragraph
>>
>> The command "access-list 1 permit 160.0.0.0 0.255.255.255" permits
>> 160.0.0.0/8, 160.0.0.0/9, 160.0.0.0/10 and so on. In order to restrict
>> the
>> update to only 160.0.0.0/8, we have to use an extended access-list of the
>> following format: "access-list 101 permit ip 160.0.0.0 0.255.255.255
>> 255.0.0.0 0.0.0.0" This list permits 160.0.0.0/8 only.
>>
>> I must be missing something here, because I don't see how the destination
> of
>> 255.0.0.0 with a mask of 0.0.0.0 would permit all the other 160.0.0.0
>> networks that had a mask different from 8.
>>
>> Jonathan Charles
>>
>> SBC
>>
>> CCNP/CCDP, NNCSE, NNCSS, MCSE
>>
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