after installing cisco vpn client on a local machine, other machines can not remote control nor ping this machine. However this machine can ping out and remote control others. the client isn't enabled and the cisco adapter it installs is disabled (no vpn sessions going on). I can't seem to find anything that would be filtering inbound connections related to this client. One thing I did discover is that after turning off the VPN service from MS Services the problem goes away. So my question is, what exactly is this service doing thats filtering inbound connectivity? Has anyone seen this before?