Information Technology Reference
In-Depth Information
Example 9-14
Final Customer Aggregation Edge Router BGP Configuration (Continued)
! Inbound Customer Local Preference 90
ip community-list 11 permit 100:90
ip community-list 11 deny
!
! Inbound Customer Local Preference 110
ip community-list 12 permit 100:110
ip community-list 12 deny
!
! Inbound Customer Local Preference 120
ip community-list 13 permit 100:120
ip community-list 13 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
ip prefix-list ROOTSERVERS seq 50 permit 192.58.128.0/24
ip prefix-list ROOTSERVERS seq 55 permit 193.0.14.0/24
ip prefix-list ROOTSERVERS seq 60 permit 198.32.64.0/24
ip prefix-list ROOTSERVERS seq 65 permit 202.12.27.0/24
! Global Top Level DNS Servers
ip prefix-list GTLDSERVERS seq 5 permit 192.5.6.0/24
ip prefix-list GTLDSERVERS seq 10 permit 192.33.14.0/24
ip prefix-list GTLDSERVERS seq 15 permit 192.26.92.0/24
ip prefix-list GTLDSERVERS seq 20 permit 192.31.80.0/24
ip prefix-list GTLDSERVERS seq 25 permit 192.12.94.0/24
ip prefix-list GTLDSERVERS seq 30 permit 192.35.51.0/24
ip prefix-list GTLDSERVERS seq 35 permit 192.42.93.0/24
ip prefix-list GTLDSERVERS seq 40 permit 192.54.112.0/24
