Enabling the logging of neighbor state changes, Enhancing is-is network security, Configuration prerequisites – H3C Technologies H3C S12500 Series Switches User Manual
Page 177: Configuring neighbor relationship authentication

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Step Command
Remarks
6.
Configure a DIS
name.
isis dis-name symbolic-name
Optional.
Not configured by default.
This command takes effect
only on a router with dynamic
system ID to host name
mapping configured.
This command is not
supported on P2P interfaces.
Enabling the logging of neighbor state changes
Logging of neighbor state changes enables the router to output neighbor state changes to the console
terminal.
To enable the logging of neighbor state changes:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
3.
Enable the logging of
neighbor state
changes.
log-peer-change
Enabled by default.
Enhancing IS-IS network security
To enhance the security of an IS-IS network, you can configure IS-IS authentication. IS-IS authentication
involves neighbor relationship authentication, area authentication, and routing domain authentication.
Configuration prerequisites
Complete the following tasks before this configuration:
•
Configure network layer addresses for interfaces to ensure IP connectivity between neighboring
nodes.
•
Enable IS-IS.
Configuring neighbor relationship authentication
With neighbor relationship authentication configured, an interface adds the password in the specified
mode into hello packets to the peer and checks the password in the received hello packets. If the
authentication succeeds, it forms the neighbor relationship with the peer.
Follow these guidelines when you configure neighbor relationship authentication:
•
The authentication mode and password at both ends must be identical.