Hello everybody. I have question about binding mac address of a machine with ip address of machine. I have created a virtual lan with ipfwadm and ipchaind, and my config is : echo 1 > /proc/sys/net/ipv4/ip_forward ipfwadm -I -a accept -W lo ipfwadm -I -a accept -W eth0 ipfwadm -I -a accept -P tcp -D 217.219.18.17 ipfwadm -I -a accept -P tcp -D 127.0.0.1 ipfwadm -I -a accept -P tcp -D 192.168.168.1 ipfwadm -I -a accept -P tcp -D localhost ipfwadm -I -a accept -P tcp -D 0/0 80 -r 3128 Now I want set mac address of my machines to ip addresses of my machines for example I have machine with this address: 192.168.168.2 and mac address of this machine is 0050.48ca.baba , how I can write command that only this machine can use this ip address???? Thanks a lot for you helping -- ------------------------------------------------------------------------ To unsubscribe email security-discuss-request@xxxxxxxxxxxxxxxxx with "unsubscribe" in the subject of the message.