Good evening. I am a Cisco newbie and have a problem that is causing one of my users to not be able to do their job so I need help in the worst way. The user is on an XP/DHCP desktop. He can ping all the way to the Home Office but we cannot ping him, in fact the core switch at his location can't ping him. The firewall on his PC is disabled. The connectivity goes like this:
XP/DHCP Desktop > Catalyst Express Switch> 3560G-48 Switch > 2851 Router >Sprint MPLS > 3825 Router > 4507 Switch> XP/DHCP Laptop
The desktop at the remote site can ping all of the devices in between but none of the devices in between can ping him (I have not been able to verify the Catalyst Express because while I can bring up the web interface I don't see a way of pinging any device on it - however I have called the user and have disabled the port on the switch and re-enabled it and he saw the disconnection message on his desktop. I have also asked him to do a route print on the XP Desktop and I don't see anything funky with that. He is getting his DHCP address also.
Thanks in advance, I will greatly appreciate any help.