Basic BGP Lab1

Configure

R1

router bgp 100

net 1.1.1.0 mask 255.255.255.0

nei 10.1.12.2 remote-as 200

R2

router bgp 200

net 2.2.2.0 mask 255.255.255.0

nei 10.1.12.1 remote-as 100

nei 10.1.23.3 remote-as 300

R3

router bgp 300

net 3.3.3.0 mask 255.255.255.0

nei 10.1.23.2 remote-as 200

Verify

#sh ip bgp summary (on all routers / Checking BGP Nei)

#sh ip bgp (on all routers / Checking BGP Route)

#ping xx.xx.xx.xx so lo 0

+++++++++++++++++++++++++++++++++++++++++++

Configure

R4

router bgp 400

net 4.4.4.0 mask 255.255.255.0

nei 10.1.45.5 remote-as 500

R5

router bgp 500

net 5.5.5.0 mask 255.255.255.0

nei 10.1.45.4 remote-as 400

nei 10.1.56.6 remote-as 500

R6

router bgp 500

net 6.6.6.0 mask 255.255.255.0

nei 10.1.56.5 remote-as 500

Verify

#sh ip bgp summary (on all routers / Checking BGP Nei)

#sh ip bgp (on all routers / Checking BGP Route)

#ping xx.xx.xx.xx so lo 0 (Couldn’t get connection between R4 and R6)

Solved

R5

router bgp 500

nei 10.1.56.6 next-hop-self

#ping xx.xx.xx.xx so lo 0 (Get connection between R4 and R6)

+++++++++++++++++++++++++++++++++++++++++++

Configure

R7

router bgp 789

net 7.7.7.0 mask 255.255.255.0

nei 10.1.78.8 remote-as 789

R8

router bgp 789

net 8.8.8.0 mask 255.255.255.0

nei 10.1.78.7 remote-as 789

nei 10.1.89.9 remote-as 789

R9

router bgp 789

net 9.9.9.0 mask 255.255.255.0

nei 10.1.89.8 remote-as 789

Verify

#sh ip bgp summary (on all routers / Checking BGP Nei)

#sh ip bgp (on all routers / Checking BGP Route)

#ping xx.xx.xx.xx so lo 0 (Couldn’t see between R7 and R9)

Solved

R7

router bgp 789

nei 10.1.89.9 remote-as 789

ip route 10.1.89.0 255.255.255.0 10.1.78.8

R9

router bgp 789

nei 10.1.78.7 remote-as 789

ip route 10.1.78.0 255.255.255.0 10.1.89.8

*Need Underlined Protocol (RIP,OSPF,EIGRP,ISIS,Static-Route)

*Fully-Meshed

#ping xx.xx.xx.xx so lo 0 (Get connection between R7 and R9)