From: Jason Gardiner (gardiner@xxxxxxxxxx)
Date: Thu Aug 30 2001 - 16:57:22 GMT-3
Don't think that will work. The AS-prepend will not allow you to change
the origin AS. I don't believe that there is any way to do that, nor
should there be.
-- Thanks,Jason Gardiner Supervisor, Engineering Services Sprint E|Solutions
If all the cars in the United States were placed end to end, it would probably be Labor Day Weekend. --Doug Lars
SFeldberg@edeltacom.com wrote: > > You can do that with a route-map. This scenario is an add-on to the > configuration on p. 168 of Doyle vol II. I have added a loopback interface > on Taos, added the appropriate network statement and route-map. The > 99.99.99.0 network appers on Vail as if it originated in AS 500. In your > scenario, you would prepend AS500 to the route on R7. > > R1-Taos#sh run > ! > interface Loopback9 > ip address 99.99.99.1 255.255.255.0 > no ip directed-broadcast > ! > router bgp 200 > no synchronization > bgp router-id 10.100.83.1 > network 99.99.99.0 mask 255.255.255.0 > network 192.168.1.216 mask 255.255.255.252 > network 192.168.1.0 > network 192.168.100.0 > network 192.168.200.0 > timers bgp 5 15 > neighbor 192.168.1.217 remote-as 200 > neighbor 192.168.1.226 remote-as 100 > neighbor 192.168.1.226 route-map AS500 out > no auto-summary > ! > access-list 1 permit 99.99.99.0 0.0.0.255 > access-list 2 permit any > ! > route-map AS500 permit 10 > match ip address 1 > set as-path prepend 500 > R1-Taos#sh ip bgp > BGP table version is 15, local router ID is 10.100.83.1 > 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 > *> 99.99.99.0/24 0.0.0.0 0 32768 i > *> 192.168.1.196/30 192.168.1.226 0 100 i > *> 192.168.1.200/30 192.168.1.226 0 100 400 i > *> 192.168.1.204/30 192.168.1.226 0 100 i > *> 192.168.1.208/30 192.168.1.226 0 0 100 i > *> 192.168.1.212/30 192.168.1.226 0 100 300 i > *> 192.168.1.216/30 0.0.0.0 0 32768 i > *> 192.168.1.220/30 192.168.1.226 0 100 i > *> 192.168.1.224/30 192.168.1.226 0 0 100 i > *> 192.168.50.0 192.168.1.226 0 100 400 i > *> 192.168.75.0 192.168.1.226 0 100 400 i > *> 192.168.100.0 0.0.0.0 0 32768 i > *> 192.168.200.0 0.0.0.0 0 32768 i > *> 192.168.250.0 192.168.1.226 0 100 300 i > > R2-Vail#sh ip bgp > BGP table version is 36, local router ID is 2.2.2.2 > 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 > *> 99.99.99.0/24 192.168.1.225 0 0 200 500 i > *>i192.168.1.196/30 192.168.1.222 0 100 0 i > *>i192.168.1.200/30 192.168.1.205 0 100 0 400 i > *>i192.168.1.204/30 192.168.1.197 0 100 0 i > *> 192.168.1.208/30 0.0.0.0 0 32768 i > *> 192.168.1.212/30 192.168.1.210 0 0 300 i > *> 192.168.1.216/30 192.168.1.225 0 0 200 i > *>i192.168.1.220/30 192.168.1.222 0 100 0 i > *> 192.168.1.224/30 0.0.0.0 0 32768 i > *>i192.168.50.0 192.168.1.205 0 100 0 400 i > *>i192.168.75.0 192.168.1.205 0 100 0 400 i > *> 192.168.100.0 192.168.1.225 0 0 200 i > *> 192.168.200.0 192.168.1.225 0 0 200 i > *> 192.168.250.0 192.168.1.210 0 0 300 i > > Steve > > > Marek Janik > <mjanik@mcx.c To: ccielab@groupstudy.com > om.pl> cc: > Sent by: Subject: bgp question > nobody@groups > tudy.com > > > 08/30/2001 > 09:26 AM > Please > respond to > Marek Janik > > > > Hello ccielab, > I've got three routers with BGP > R3 ------- R4 --------- R7 > AS3 - ibgp - AS3 - ebpg - AS 200 > And on R4 I've got a few routes from R7 .... Is there any way to send > one of these routes from R4 to R3 as originating from AS500 (other than > AS 200) > -- > Marek Janik > **Please read:http://www.groupstudy.com/list/posting.html > **Please read:http://www.groupstudy.com/list/posting.html **Please read:http://www.groupstudy.com/list/posting.html
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