Lenovo ThinkSystem NE2552E Application Manual page 385

3. Enable IP forwarding.
4. Configure BGP peer router 1 and 2.
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IP forwarding is turned on by default and is used for VLAN‐to‐VLAN (non‐BGP)
routing. Make sure IP forwarding is on if the default gateways are on different
subnets or if the switch is connected to different subnets and those subnets need to
communicate through the switch (which they almost always do).
NE2552E(config)# ip routing
Note: To help eliminate the possibility for a Denial of Service (DoS) attack, the
forwarding of directed broadcasts is disabled by default.
NE2552E(config)# router bgp
NE2552E(config-router-bgp)# ip router-id 8.8.8.8
NE2552E(config-router-bgp)# as 816
NE2552E(config-router-bgp)# neighbor 1 remote-address 200.200.200.2
NE2552E(config-router-bgp)# neighbor 1 remote-as 100
NE2552E(config-router-bgp)# no neighbor 1 shutdown
NE2552E(config-router-bgp)# neighbor 2 remote-address 210.210.210.2
NE2552E(config-router-bgp)# neighbor 2 remote-as 200
NE2552E(config-router-bgp)# no neighbor 2 shutdown
(Enable IP forwarding)
Chapter 27: Border Gateway Protocol
385