Have you ever seen where a Cisco router "lose a command line and then will not accept a command line?
First of all, before rebooting a 2801 RTR I wrote the config and then rebooted the router.
After the reboot we started having incoming email issues. I checked the config and somehow it âlostâ a line in the config.
So I put the line back in and wrote the config, again. Usually if a RTR doesn't like a command line it'll say something. but the rtr didn't say anything.
I then did a "sh run" and the line was gone!