ELTEX ESR-100 - 7.15 BGP configuration

ESR Series Routers Operation Manual 61
Objective: Configure BGP on the router with the following parameters:
Fig. 7.16—Network structure
– proprietary subnets: 80.66.0.0/24, 80.66.16.0/24;
– announcing of directly connected subnets;
– proprietary AS 2500;
– first neighbouring—subnet 219.0.0.0/30, proprietary IP address 219.0.0.1, neighbour IP
address 219.0.0.2, AS 2500;
– second neighbouring—subnet 185.0.0.0/30, proprietary IP address 185.0.0.1, neighbour IP
address 185.0.0.2, AS 20.
Solution:
Configure required network parameters:
esr# configure
esr(config)# interface gigabitethernet 1/0/1
esr(config-if-gi)# ip address 185.0.0.1/30
esr(config-if-gi)# exit
esr(config)# interface gigabitethernet 1/0/2
esr(config-if-gi)# ip address 219.0.0.1/30
esr(config-if-gi)# exit
esr(config)# interface gigabitethernet 1/0/3
esr(config-if-gi)# ip address 80.66.0.1/24
esr(config-if-gi)# exit
esr(config)# interface gigabitethernet 1/0/4
esr(config-if-gi)# ip address 80.66.16.1/24
esr(config-if-gi)# exit
Create BGP process for AS 2500 and enter process parameters' configuration mode:
esr(config)# router bgp 2500
Enter routing information configuration mode for IPv4:
esr(config-bgp)# address-family ipv4
Announce directly connected subnets:
esr(config-bgp-af)# redistribute connected
Create neighboring with 185.0.0.2, 219.0.0.2 specifying AS and enable them:
esr(config-bgp-af)# neighbor 185.0.0.2
esr(config-bgp-neighbor)# remote-as 20
esr(config-bgp-neighbor)# enable
esr(config-bgp-neighbor)# exit