[isp-bgp] Re: BGP Advertisement question..

[James <haesu@...>]

	-> there is no route existing on the IGP or local RIB table.
	   even with 'no synchronization' statement, the router will not
	   advertise a bgp prefix if there is no existing entry in the RIB
	   period.

	Solution:
	ip route 203.23.194.0 255.255.255.0 Null0 199

	or route it somewhere... give the /24 to a customer or whatever

-J

-- 
James Jun                                            TowardEX Technologies, Inc.
Technical Lead                        Network Design, Consulting, IT Outsourcing
james@...                  Boston-based Colocation & Bandwidth Services
cell: 1(978)-394-2867           web: http://www.towardex.com , noc: www.twdx.net

On Wed, May 12, 2004 at 12:15:49PM +1000, mb@....au wrote:
> I am testing the advertisement of a clients /24 to one of our upstreams via 
> BGP (Upstreams ACL's have been relaxed to permit this advertisement last week.)
> 
> I have the following: (Unrelated info removed)
> 
> !
> router bgp 17766
>  no synchronization
>  bgp log-neighbor-changes
>  bgp deterministic-med
>  network 203.23.194.0
>  network 203.149.64.0 mask 255.255.240.0
>  network 203.149.66.0
>  network 203.149.69.0
>  network 203.149.70.0
>  network 203.149.71.0
>  network 203.149.72.0
>  neighbor Uecomm peer-group
>  neighbor Uecomm remote-as 10223
>  neighbor Uecomm soft-reconfiguration inbound
>  neighbor Uecomm route-map PREFER_UECOMM_IN in
>  neighbor Uecomm route-map UE_OUT out
>  neighbor 203.94.176.105 peer-group Uecomm
>  no auto-summary
> !
> 
> !
> route-map UE_OUT permit 10
>  match ip address prefix-list PRE_OUT
> !
> 
> !
> ip prefix-list PRE_OUT seq 5 permit 203.149.64.0/20
> ip prefix-list PRE_OUT seq 10 permit 203.23.194.0/24
> !
> 
> show ip prefix-list PRE_OUT                          
> ip prefix-list PRE_OUT: 2 entries
>    seq 5 permit 203.149.64.0/20
>    seq 10 permit 203.23.194.0/24
> 
> I have performed a: "clear ip bgp 203.94.176.105 soft out"
> 
> But, I am not seeing the advertisement:
> 
> #sh ip bgp neighbors 203.94.176.105 advertised-routes 
> BGP table version is 1432119, local router ID is 210.10.54.92
> Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
>               r RIB-failure, S Stale
> Origin codes: i - IGP, e - EGP, ? - incomplete
> 
>    Network          Next Hop            Metric LocPrf Weight Path
> *> 203.149.64.0/20  0.0.0.0                  0         32768 i
> gc-rt-02.datafx.com.au#
> 
> Have I got something obviously incorrect with my config? (i.e. Can I only 
> perform "clear ip bgp ..." on inbound?)
> Or would the upstream not relaxing there ACL's cause this behaviour?
> 
> Thanks in advance,
> MB
> 
> 
> -------------------------------------------------------------------------
> This e-mail was sent via Data FX Online WebMail http://www.datafx.com.au/
> 
> 
> 




> To unsubscribe via postal mail, please contact us at:
> Jupitermedia Corp.
> Attn: Discussion List Management
> 475 Park Avenue South
> New York, NY 10016
> 
> Please include the email address which you have been contacted with.







To unsubscribe via postal mail, please contact us at:
Jupitermedia Corp.
Attn: Discussion List Management
475 Park Avenue South
New York, NY 10016

Please include the email address which you have been contacted with.