I have attempted to open three ports on our firewall.  Only when I test the ports using an open port checker tool online, I get a response that the ports are closed.  I'm not understanding why these ports are not getting hits or showing open.  Can so...

I have a site to site vpn connection using two Pix devices.  When I attempt to map a drive on a PC at the remote site to a Server at the main site it does not work.  Also, I can not see the PC's on the network accross the VPN tunnel.Help!!!

Can someone explain the call path for calls going in and out of the following configuration?I have a 3662 with a DS1 card connected to an Avaya PBX on the local end. The remote end has a 3810 with (6) fxs cards in it. Each end is configured for all...

Recently we setup an isolated network for imaging HDD's. During this process we discovered that a 10Mb/sec hub had a better data transfer rate than a 10/100Mb/sec switch. This caused an old question to come screaming back to the forefront of my min...