3com 5500-ei pwr Reference Guide

 

4-4 

Use the undo authentication-mode command to cancel the authentication attribute of this area.  

By default, an area does not support authentication attribute. 

All the routers in one area must use the same authentication mode (no authentication, simple text 
authentication, or MD5 cipher text authentication). If the mode of supporting authentication is 
configured, all routers on the same segment must use the same authentication key.  

Use the ospf authentication-mode simple command to configure a simple text authentication key. 

Use the ospf authentication-mode md5 command to configure the MD5 cipher text authentication 
key if the area is configured to support MD5 cipher text authentication mode. 

 

After you configure one OSPF area to support the authentication attribute, you need to use the ospf 

command to set the authentication mode on interfaces. When configuring virtual 

link authentication, you can use the authentication-mode command to specify the authentication 
mode as MD5 cipher text or simple text for the backbone area. 

 

Related commands: ospf authentication-mode, vlink-peer.  

# Enter area 0 view. 

<Sysname> system-view 

System View: return to User View with Ctrl+Z.  

[Sysname] ospf 1  

[Sysname-ospf-1] area 0 

# Specify the OSPF area 0 to support MD5 cipher text authentication. 

[Sysname-ospf-1-area-0.0.0.0] authentication-mode md5 

 { cost value | interval seconds | limit routes | tag tag | type type } * 

 default { cost | interval | limit | tag | type } * 

OSPF view 

Default cost of an external route redistributed by OSPF, in the range of 0 to 16777214. 

: Default interval for redistributing external routes in seconds, in the range of 1 to 2147483647. 

Default limit of external routes that can be redistributed at one time, in the range of 200 to 

2147483647. 

: Default tag of routes redistributed by OSPF, in the range of 0 to 4294967295.