Service Manual

Usage
Information
You cannot disable leaking from Level 1 to Level 2. Also, you cannot enable leaking from Level 2 to Level
1. 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 Level 1 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
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
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 — set the authentication password for a routing domain.
● isis password — 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
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
Intermediate System to Intermediate System (IS-IS) 787