Service Manual

Usage Information
You cannot disable leaking from one level to another; however, you can regulate the rate flow from one level to
another using an IP Prefix list. If you do not configure the IP Prefix list, all routes are leaked.
You can find more information in IETF RFC 2966, Domain-wide Prefix Distribution with Two-Level IS-IS.
area-password
Configure a hash message authentication code (HMAC) password for an area.
Syntax
area-password [hmac-md5 | encryption-type] password
To delete a password, use the no area-password command.
Parameters
hmac-md5 (OPTIONAL) Enter the keywords hmac-md5 to encrypt the password.
encryption-type (OPTIONAL) Enter 7 to encrypt the password using DES.
password Enter a 1 to 16-character length alphanumeric string to prevent unauthorized access or
incorrect routing information corrupting the link state database. The password is
processed as plain text, which only provides limited security.
Defaults Not configured.
Command Modes ROUTER ISIS
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
To prevent the link state database from receiving incorrect routing information from unauthorized routers, use the
area-password command on routers within an area.
The configured password injects into Level 1 LSPs, CSNPs, and PSNPs.
Related Commands
• domain-password — allows you to set the authentication password for a routing domain.
• isis password — allows you to configure an authentication password for an interface.
clear config
Clear IS-IS configurations that display under the router isis heading of the show running-config command output.
Syntax
clear config
Command Modes ROUTER ISIS
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Intermediate System to Intermediate System (IS-IS) 725