Why do I get the error message "Invalid input detected at '^' marker

[Susan Zheng]

Hi,

 

I'm new in using cisco router. Just tried to configure a cisco1841 router(ISO v12.4) as a default ipv6 router.

 

Here is what I did:

 

	Command	Purpose
Step 1	enable Example: Router> enable	Enables privileged EXEC mode. • Enter your password if prompted.
Step 2	configure terminal Example: Router# configure terminal	Enters global configuration mode.
Step 3	ipv6 unicast-routing Example: Router(config)# ipv6 unicast routing	Enables the forwarding of IPv6 unicast datagrams.

 

 

But after step 3, I got the following error message:

================================

"Invalid input detected at '^' marker

 

(Also tried: ipv6 enable, got the same error message again)

 

I wonder why the above error message prompted up and how to fix it?

(Do I have to do configure something else in order to be able to configure

for ipv6 addresses?)

 

Thanks very much!

Susan

 

 

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