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. And see here for current known issues.

New Member

connectivity issue on Cisco 2811

Hi all,

I'm having an issue with my Cisco 2811. The Internal FastEthernet0/1 interface is showing Link up but Protocol down. I have tried various combinations with the speed and duplex on the port and having no luck.

The port connects to our Fortigate 110c router. Your assistance with this is appreciated.

Sent from Cisco Technical Support iPad App

5 REPLIES
Hall of Fame Super Bronze

connectivity issue on Cisco 2811

Router-to-Router needs a crossover cable.

Regards,

Edison

New Member

Re: connectivity issue on Cisco 2811

cabling between devices was already there and was working. The only change was to the port speed and duplex on the port. I changed this port to Auto Auto by mistake - should have been interface 0/0. I have reverted settings back but port still won't come up.

Sent from Cisco Technical Support iPad App

Hall of Fame Super Bronze

connectivity issue on Cisco 2811

You can do 'shut' followed by 'no shut' on the Cisco side, this will reset the port state.

Not sure if they are similar commands in the other router.

New Member

Re: connectivity issue on Cisco 2811

II will give that a try but assuming that those commands would be equivalent of restarting router which I've done many times already?

Sent from Cisco Technical Support iPad App

Hall of Fame Super Bronze

connectivity issue on Cisco 2811

Both routers? Try swapping the cables..

238
Views
0
Helpful
5
Replies