This may be a dumb question but is it possible to use an iptables rule for mac address filtering to allow vnc access from a particular machine to one in the office when I'm traveling. That means I'll be using various kinds of internet access that I cannot know in advance (dhcp ip's, etc.) I tried using the client laptop's macaddress like this:
I tried iptables -I INPUT 9 -m mac --mac-source macaddr -m state --state NEW -p tcp --dport 5901:5906 -j ACCEPT
But it appears that the server is getting a mac address from my ISP rathere than the originating machine or even my dsl router. If I remove the mac match, I connect just fine. And if I use a machine on the same network, I can use the rule above.
I've got FC4, with kernel 2.6.17-1.2142_FC4.
Tia
