75. Configure BGP Multihomed

Опубликовано: 05 Ноябрь 2024
на канале: ITProDan

421

BGP Multihomed

1. Establish BGP Peering on all routers

syntax:
conf t
router bgp (local asn)
neighbor (ip address) remote-as (asn)
exit

E1:
conft
router bgp 10
neighbor 11.10.10.2 remote-as 100
neighbor 12.10.10.2 remote-as 100
network 185.42.65.80 mask 255.255.255.248
exit
ip route 185.42.65.80 255.255.255.248 null0

ISP1:
conf t
router bgp 100
neighbor 11.10.10.1 remote-as 10
neighbor 14.10.10.2 remote-as 400
exit

ISP2:
conf t
router bgp 200
neighbor 12.10.10.1 remote-as 10
neighbor 24.10.10.2 remote-as 400
neighbor 23.10.10.2 remote-as 300
exit

ISP3:
conf t
router bgp 300
neighbor 23.10.10.1 remote-as 200
network 88.40.100.200 mask 255.255.255.254
exit
ip route 88.40.100.200 255.255.255.254 null0

ISP4:
conf t
router bgp 400
neighbor 14.10.10.1 remote-as 100
neighbor 24.10.10.1 remote-as 200
network 100.32.80.40 mask 255.255.255.252
exit
ip route 100.32.80.40 255.255.255.252 null0