この例は、IBGPのもっとも簡単な設定例です。
| | +------+------+ +------+------+ | RT A | AS 64002 | RT B | AS 64003 +------+------+ +------+------+ | 172.16.0.1 | 172.16.1.1 | | | 1.5Mbit/s 専用線 | 1.5Mbit/s 専用線 | | +--------------|---------------------------|------------------+ | | | | | | 172.16.0.2 | 172.16.1.2 | | +------+------+ +------+------+ | | | RT1 | | RT2 | | | +------+------+ +------+------+ | | | 192.168.0.1/24 | 192.168.0.2/24 | | | | | | +---------------------------+ | | AS 64001 | +-------------------------------------------------------------+
# # LANの設定 # ip lan1 address 192.168.0.1/24 # # LOOPBACKインタフェースの設定 # ip loopback1 address 192.168.101.1 # # WANの設定 # line type bri1.1 l128 pp select 1 pp bind bri1.1 ip pp remote address 172.16.0.1 ip pp local address 172.16.0.2 pp enable 1 # # ネイバへの経路の設定 # ip route 192.168.102.1 gateway 192.168.0.2 # # BGPの設定 # bgp use on bgp autonomous-system 64001 bgp neighbor 1 64001 192.168.102.1 local-address=192.168.101.1 bgp neighbor 2 64002 172.16.0.1 bgp router id 192.168.101.1 bgp import filter 1 include all bgp import 64001 bgp 64002 filter 1 bgp import 64002 bgp 64001 filter 1 bgp export filter 1 include all bgp export 64001 filter 1 bgp export 64002 filter 1
# # LANの設定 # ip lan1 address 192.168.0.2/24 # # LOOPBACKインタフェースの設定 # ip loopback1 address 192.168.102.1 # # WANの設定 # line type bri1.1 l128 pp select 1 pp bind bri1.1 ip pp remote address 172.16.1.1 ip pp local address 172.16.1.2 pp enable 1 # # ネイバへの経路の設定 # ip route 192.168.101.1 gateway 192.168.0.1 # # BGPの設定 # bgp use on bgp autonomous-system 64001 bgp neighbor 1 64001 192.168.101.1 local-address=192.168.102.1 bgp neighbor 2 64003 172.16.1.1 bgp router id 192.168.102.1 bgp import filter 1 include all bgp import 64001 bgp 64003 filter 1 bgp import 64003 bgp 64001 filter 1 bgp export filter 1 include all bgp export 64001 filter 1 bgp export 64003 filter 1