I installed pcanywhere on one of my PCs. I wanted to only allow 1 PC connect to the host.
So in CFP on the host edited the rule for awrem32.exe (IP out) and awhost32.exe (IP in). I added the MAC adress for the PC connecting (destination & source).
This worked fine for one day. Today it doesn’t seem to work anymore. When I try to connect CFP on the host want me to add awrem32.exe again.
It seems for some reason the awrem32.exe-rule with the MAC address doesn’t seem to work anymore.
I’ve rebooted, removed/recreated the same rule but it doesn’t help.
MAC addresses are useful only on the local LAN, and are not propagated across the Internet by the IP protocols. Once a packet hits a router, the association between MAC and IP address is broken. That’s how routers do their stuff, and know which machine to send a packet to. What you’re trying to do with pcanywhere can’t be done with a MAC address, only with an IP address.