Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

Interface administratively down

Hi all,

  I am configuring a 2801 router . I set up ip address on the interface Fa 0/0 and  'no shutdown' command. But, after a restart , the interface is changing to down  again!

  What I must do to ?

Thanks in advanced!

4 REPLIES

Re: Interface administratively down

is it just down or admin down? if it's just down then it's down because there's no live ethernet connection, is it plugged into anything?

Re: Interface administratively down

This is admin down ! and is plugged into  a switch .

Re: Interface administratively down

If you do "show version" what does it say for configuration register, if it says something like 0xNN4N (where N is any number), then do these:

config t

config-register 0x2102

int fas0/0

no shut

exit

exit

write mem

reload

Cisco Employee

Re: Interface administratively down

You must save the configuration.

write mem

Or

copy running-config startup-config

23654
Views
0
Helpful
4
Replies