RE: BGP ORF Capability

From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Tue Mar 06 2007 - 00:56:35 ART


        You don't have prefix-list test applied inbound from R1. R3
needs to say "neighbor 20.20.20.1 prefix-list test in" under the ipv4
unicast address-family.

HTH,

Brian McGahan, CCIE #8593 (R&S/SP)
bmcgahan@internetworkexpert.com

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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ccie anees
Sent: Monday, March 05, 2007 8:49 PM
To: ccielab@groupstudy.com
Subject: BGP ORF Capability

Hi,
   
   I have issues with ORF. I may be misunderstood it.
  This is the setup I have
  R3 - 20.20.20.3 <----------> 20.20.20.1 - R1
   
  It is an ebgp peer. I am advertising 3 routes from R1 to R3 via BGP. I
would like to configure ORF to filter two of the three routes and allow
only 1.1.1.0/24. Please check the configuration and let me know what I
am doing wrong?
   
  R3
***
  ip prefix-list test seq 5 permit 1.1.1.0/24
  
router bgp 60000
 no synchronization
 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor ABCD peer-group
 neighbor ABCD remote-as 60000
 neighbor 10.10.10.4 peer-group ABCD
 neighbor 10.10.10.5 peer-group ABCD
 neighbor 10.10.10.6 peer-group ABCD
 neighbor 20.20.20.1 remote-as 100
 no auto-summary
 !
 address-family ipv4 multicast
 no auto-summary
 no synchronization
 exit-address-family
 !
 address-family ipv4
 neighbor ABCD activate
 neighbor ABCD route-reflector-client
 neighbor 10.10.10.4 peer-group ABCD
 neighbor 10.10.10.5 peer-group ABCD
 neighbor 10.10.10.6 peer-group ABCD
 neighbor 20.20.20.1 activate
 neighbor 20.20.20.1 capability orf prefix-list send
 no auto-summary
 no synchronization
 exit-address-family
   
  R1
***
  Loopback0 1.1.1.1 YES NVRAM up
up
  Loopback1 1.1.10.1 YES manual up
up
  Loopback2 1.1.11.1 YES manual up
up
  
router bgp 100
 template peer-session egponly
  remote-as 60000
 exit-peer-session
 !
 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor 20.20.20.3 inherit peer-session egponly
 !
 address-family ipv4
 neighbor 20.20.20.3 activate
 neighbor 20.20.20.3 capability orf prefix-list receive
 no auto-summary
 no synchronization
 network 1.1.1.0 mask 255.255.255.0
 network 1.1.10.0 mask 255.255.255.0
 network 1.1.11.0 mask 255.255.255.0
 exit-address-family

   
  Thanks,
   
  Anees.

 
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