From: Edmund Roche-Kelly (edr9007@xxxxxxx)
Date: Tue Jun 25 2002 - 21:38:34 GMT-3
You've got remove-private-as on the wrong router -- see
http://www.cisco.com/warp/public/459/32.html
If the update has only private AS numbers in the AS_PATH, BGP removes
these numbers.
If the AS_PATH includes both private and public AS numbers, BGP doesn't
remove the private AS numbers. This situation is considered a
configuration error.
Ed
Michael Popovich wrote:
>
> I have done this before and it has always worked in the past.
>
> The remove-private-AS on the BGP neighbor is supposed to remove Private
> AS numbers in the as-path list on outbound updates.
>
> Notice AS65200 is still in R6 as-path. Private AS's are 64512-65535
> right? Does the route-map have something to do with it, maybe the order
> in which things are processed?
>
> Have reset the peer but nothing changes.
>
> TIA
>
> MP
>
> R4-------R6
>
> R4-192.168.4.4
> R6-192.168.6.6
>
> R4:
>
> router bgp 100
> bgp log-neighbor-changes
> neighbor 192.168.2.2 remote-as 200
> neighbor 192.168.2.2 ebgp-multihop 255
> neighbor 192.168.2.2 update-source Loopback0
> neighbor 192.168.6.6 remote-as 300
> neighbor 192.168.6.6 ebgp-multihop 255
> neighbor 192.168.6.6 update-source Loopback0
> neighbor 192.168.6.6 remove-private-AS
> neighbor 192.168.6.6 route-map add-as out
>
> route-map add-as permit 10
> match ip address 10
> set as-path prepend 350 450 550
> !
> route-map add-as permit 20
>
> R6
>
> router bgp 300
> bgp log-neighbor-changes
> neighbor 192.168.4.4 remote-as 100
> neighbor 192.168.4.4 ebgp-multihop 255
> neighbor 192.168.4.4 update-source Loopback0
>
> r6#sb
> BGP table version is 16, local router ID is 192.168.6.6
> 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
> *> 200.200.1.0 192.168.4.4 0 100 200
> 65200 i
> *> 200.200.2.0 192.168.4.4 0 100 350 450
> 550 200 65200 i
> *> 200.200.3.0 192.168.4.4 0 100 200
> 65200 i
This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:41 GMT-3