Enabling source address check for hello packets on a PPP interface

An IS-IS PPP interface can have a peer on a different network. Perform this task to configure an IS-IS PPP interface to establish neighbor relationship only with a peer on the same network.

To enable source address check for hello packets on a PPP interface:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter interface view.

interface interface-type interface-number

N/A

3. Enable source address check for hello packets on a PPP interface.

isis peer-ip-check

By default, an IS-IS PPP interface can have a peer on a different network.

The command applies only to PPP interfaces.