From: Mingzhou Nie (mnie@xxxxxxxxx)
Date: Thu Aug 22 2002 - 00:26:30 GMT-3
Sure. But it will also match
- origin 810, pass thru 7100, 732, 3232, etc,
- origin 10010, pass thru 7382, 2329, 3281(just throw some numbers
here)
- origin 10010, no pass thru, learned from 1000
- and more
you have too broad matching here.
--- Jake Nesbitt <jake.nesbitt@verizon.net> wrote:
> How about:
>
> ^1000_.*100_.*10$
>
> should match any as-paths that originate in AS 10, pass through AS
> 100, and
> are learned from AS 1000.
>
> Couple of examples from route-server:
>
> route-server.east>sh ip bgp regexp ^701_.*1239_
> BGP table version is 97958412, local router ID is 216.191.65.118
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> * i12.4.96.0/24 216.191.64.10 60 0 701 1239
> 14452
> i
> * i 216.191.64.4 60 0 701 1239
> 14452
> i
> * i12.4.96.0/23 216.191.64.10 60 0 701 1239
> 14452
> i
> * i 216.191.64.4 60 0 701 1239
> 14452
> i
> * i12.4.97.0/24 216.191.64.10 60 0 701 1239
> 14452
> i
> * i 216.191.64.4 60 0 701 1239
> 14452
> i
> * i12.4.125.0/24 216.191.64.10 60 0 701 1239
> i
> * i 216.191.64.4 60 0 701 1239
> i
> * i12.5.164.0/24 216.191.64.4 60 0 701 1239
> 18618
> 11134 i
> * i12.6.206.0/24 216.191.64.10 60 0 701 1239
> 20357
> i
> *>i 216.191.64.4 60 0 701 1239
> 20357
> i
> *>i12.13.78.0/24 216.191.64.4 60 0 701 1239
> 13578
> i
> * i 216.191.64.10 60 0 701 1239
> 13578
> i
> * i12.13.116.0/22 216.191.64.10 60 0 701 1239
> 6580 i
> *>i 216.191.64.4 60 0 701 1239
> 6580 i
> * i12.20.66.0/23 216.191.64.10 60 0 701 1239
> 11589
> i
> *>i 216.191.64.4 60 0 701 1239
> 11589
> i
> * i12.20.137.0/24 216.191.64.10 60 0 701 1239
> 14452
> i
> * i 216.191.64.4 60 0 701 1239
> 14452
> i
> * i12.20.158.0/23 216.191.64.10 60 0 701 1239
> 14452
> i
> * i 216.191.64.4 60 0 701 1239
> 14452
> i
> * i12.21.144.0/24 216.191.64.10 60 0 701 1239
> 14564
> i
> *>i 216.191.64.4 60 0 701 1239
> 14564
> i
> * i12.23.69.0/24 216.191.64.10 60 0 701 1239
> 12156
> i
> * i 216.191.64.4 60 0 701 1239
> 12156
> i
>
> --removed--
>
> route-server.east>sh ip bgp regexp ^701_.*12156$
> BGP table version is 97958478, local router ID is 216.191.65.118
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
> * i12.23.69.0/24 216.191.64.10 60 0 701 1239
> 12156
> i
> * i 216.191.64.4 60 0 701 1239
> 12156
> i
> * i12.23.74.0/24 216.191.64.10 60 0 701 1239
> 12156
> i
> * i 216.191.64.4 60 0 701 1239
> 12156
> i
> * i12.23.120.0/21 216.191.64.10 60 0 701 1239
> 12156
> i
> * i 216.191.64.4 60 0 701 1239
> 12156
> i
> * i63.161.204.0/22 216.191.64.10 60 0 701 1239
> 12156
> i
> * i 216.191.64.4 60 0 701 1239
> 12156
> i
> * i208.32.226.0 216.191.64.10 60 0 701 1239
> 12156
> i
> * i 216.191.64.4 60 0 701 1239
> 12156
> i
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf
> Of
> Abidin Kahraman
> Sent: Wednesday, August 21, 2002 12:05 PM
> To: Brian McGahan
> Cc: ccielab@groupstudy.com
> Subject: RE: regexp fun (was RE: Filtering BGP updates using ip
> as-path
> ac cess-lists)
>
>
> Oh i see, i am sorry misunderstanding :-)
>
> Do you want to all of them in one line?
>
> Are these numbers AS# or path length? (i mean 1 2 3 and 4 5 6)
>
>
> Abidin.
> -----Original Message-----
> From: Brian McGahan [mailto:brian@cyscoexpert.com]
> Sent: Wednesday, August 21, 2002 6:52 PM
> To: 'Abidin Kahraman'
> Cc: ccielab@groupstudy.com
> Subject: RE: regexp fun (was RE: Filtering BGP updates using ip
> as-path
> access-lists)
>
> Abidin,
>
> But at the same time, you must take into account that it may not
> have transited any other AS's :)
>
> 1000 100 10
>
> and
>
> 1000 1 2 3 100 4 5 6 10
>
>
> HTH
>
> Brian McGahan, CCIE #8593
> Director of Design and Implementation
> brian@cyscoexpert.com
>
> CyscoExpert Corporation
> Internetwork Consulting & Training
> http://www.cyscoexpert.com
> Voice: 847.674.3392
> Fax: 847.674.2625
>
>
> -----Original Message-----
> From: Abidin Kahraman [mailto:kahramana@superonline.net]
> Sent: Wednesday, August 21, 2002 10:37 AM
> To: Brian McGahan; Abidin Kahraman; 'elping'; 'Michael Snyder'
> Cc: steven.j.nelson@bt.com; ccielab@groupstudy.com
> Subject: RE: regexp fun (was RE: Filtering BGP updates using ip
> as-path
> access-lists)
>
> You are right Brian,
>
> What about ^1000(_.+_)100(_.+_)10$
>
> Abidin.
>
> -----Original Message-----
> From: Brian McGahan [mailto:brian@cyscoexpert.com]
> Sent: Wednesday, August 21, 2002 6:19 PM
>
=== message truncated ===
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