Configure GTSM for BGP4+

For more information, see Generalized TTL Security Mechanism.

1. Access global configuration mode.
   

   device# configure terminal

2. Access BGP configuration mode.
   

   device(config)# router bgp

3. Specify the autonomous system in which your device resides.
   

   device(config-bgp-router)# local-as 65520

4. Specify the autonomous system in which the remote neighbor resides.
   

   device(config-bgp-router)# neighbor 2001:2018:8192::125 remote-as 2

5. Enable GTSM between the device and the neighbor.
   

   device(config-bgp-router)# neighbor 2001:2018:8192::125 ebgp-btsh

The following example summarizes the commands in this procedure.

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# local-as 65520
device(config-bgp-router)# neighbor 2001:2018:8192::125 remote-as 2
device(config-bgp-router)# neighbor 2001:2018:8192::125 ebgp-btsh