BGP MED for inbound and outbound traffic
#BGP#MED#Filter#IN#OUT #Upload#Download#control
#applied manipulation in Router1 only
router bgp 1
bgp log-neighbor-changes
network 0.0.0.0
neighbor 192.168.12.2 remote-as 2
neighbor 192.168.12.2 route-map PRM-IN in
neighbor 192.168.12.2 route-map PRM-OUT out
neighbor 192.168.21.2 remote-as 2
neighbor 192.168.21.2 route-map SCN-IN in
neighbor 192.168.21.2 route-map SCN-OUT out
ip prefix-list PRM-IN seq 5 permit 2.2.2.2/32
ip prefix-list PRM-OUT seq 5 permit 0.0.0.0/0
ip prefix-list SCN-IN seq 5 permit 2.2.2.2/32
ip prefix-list SCN-OUT seq 5 permit 0.0.0.0/0
route-map PRM-OUT permit 10
match ip address prefix-list PRM-OUT
set metric 10
route-map SCN-OUT permit 10
match ip address prefix-list SCN-OUT
set metric 1
route-map PRM-IN permit 10
match ip address prefix-list PRM-IN
set metric 10
route-map SCN-IN permit 10
match ip address prefix-list SCN-IN
set metric 1
#Router 2 applied configuration
router bgp 2
bgp log-neighbor-changes
network 2.2.2.2 mask 255.255.255.255
neighbor 192.168.12.1 remote-as 1
neighbor 192.168.21.1 remote-as 1
#verification from R1 and R2
R1
R1#show ip bgp summary
192.168.12.2 4 2 16 16 4 0 0 00:11:01 1
192.168.21.2 4 2 17 16 4 0 0 00:11:00 1
R1#show ip bgp
Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 0.0.0.0 0 32768 i
*> 2.2.2.2/32 192.168.21.2 1 0 2 i
* 192.168.12.2 10 0 2 i
R1#show ip route
B 2.2.2.2 [20/1] via 192.168.21.2, 00:10:18
#R2 Verification
R2#show ip bgp summary
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
192.168.12.1 4 1 25 25 3 0 0 00:19:01 1
192.168.21.1 4 1 24 25 3 0 0 00:19:00 1
R2#show ip bgp
Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 192.168.21.1 1 0 1 i
* 192.168.12.1 10 0 1 i
*> 2.2.2.2/32 0.0.0.0 0 32768 i
R2#show ip route
B* 0.0.0.0/0 [20/1] via 192.168.21.1, 00:18:07
2.0.0.0/32 is subnetted, 1 subnets
