3Com MSR 50 IS-IS Configuration Commands, Area-authentication-mode, Undo area-authentication-mode

74

IS-IS CONFIGURATION COMMANDS

area-authentication-mode

Syntax	area-authentication-mode { simple md5 } password [ ip osi ]
	undo area-authentication-mode
View	IS-IS view
Parameters	simple: Specifies to send the password in plain text.
	md5: Specifies to send the password encrypted with MD5.
	password: Password to be set. For simple authentication mode, the password
	must be plain text. For md5 authentication mode, the password can be either
	plain text or ciphertext. A plaintext password can be a string of up to 16
	characters, such as user918. A cipher password must be a ciphertext string of up
	to 24 characters, such as (TT8F]Y5SQ=^Q‘MAF4<1!!.
	ip: Specifies the system to check the configuration for the corresponding field of
	IP in LSP.
	osi: Specifies the system to check the configuration for the corresponding field of
	OSI in LSP.
	Whether a password should use ip or osi is not affected by the actual network
n environment.
Description	Use the area-authentication-modecommand to configure the area
	authentication mode to insert the area authentication password into all the sent

level-1 packets (LSP, CSNP, and PSNP) in the predefined way and verify the authentication password of the received level-1 pockets.

Use the undo area-authentication-modecommand to restore the default.

By default, no area authentication mode is configured in the system; that is, the system authenticates no level-1 packets received and is configured with no password.

Configuring an area authentication mode can prevent the routing information learned by any untrusted routers from being added to the local LSDB.

Related commands: reset isis all, domain-authentication-mode,isis authentication-mode