Information Technology Reference
In-Depth Information
Example 9-15
Peering Router Sample BGP Configuration (Continued)
!
! Community list for Partial Routes
ip community-list 1 permit 100:3000
ip community-list 1 deny
!
ip community-list 20 permit 65000:1000
ip community-list 20 permit 100:220
ip community-list 20 deny
!
ip community-list 21 permit 65100:1000 100:3000
ip community-list 21 deny
!
ip community-list 22 permit 65200:1000 100:3000
ip community-list 22 deny
!
ip community-list 23 permit 65300:1000 100:3000
ip community-list 23 deny
!
ip community-list 24 permit 65400:1000 100:3000
ip community-list 24 deny
!
ip community-list 25 permit 65500:1000 100:3000
ip community-list 25 deny
!
! Gold Service Community
ip community-list 50 permit 100:500
ip community-list 50 deny
!
! Silver Service Community
ip community-list 51 permit 100:510
ip community-list 51 deny
!
! Bronze Service Community
ip community-list 52 permit 100:520
ip community-list 52 deny
!
! Dynamic Black Hole Address
ip route 192.0.2.0 255.255.255.0 null0
!
! Prefix Lists for Graded Dampening
! Don't Dampen DNS Root Servers
ip prefix-list ROOTSERVERS seq 5 permit 198.41.0.0/24
ip prefix-list ROOTSERVERS seq 10 permit 128.9.0.0/16
ip prefix-list ROOTSERVERS seq 15 permit 192.33.4.0/24
ip prefix-list ROOTSERVERS seq 20 permit 128.8.0.0/16
ip prefix-list ROOTSERVERS seq 25 permit 192.203.230.0/24
ip prefix-list ROOTSERVERS seq 30 permit 192.5.5.0/24
ip prefix-list ROOTSERVERS seq 35 permit 192.112.36.0/24
ip prefix-list ROOTSERVERS seq 40 permit 128.63.0.0/16
ip prefix-list ROOTSERVERS seq 45 permit 192.36.148.0/24
continues
