On Wednesday 29 June 2005 06:56, varun_saa@xxxxxxxx wrote: > To allow a particular MAC, I plan use the rule > as sugested in my previous post : > > iptables -A FORWARD -m mac --mac-source ff:ff:ff:ff:ff:ff -j ACCEPT. > > Now how do you block all other MAC addresses in the first place. > How to write a rule for that ? iptables -A FORWARD -j DROP -- mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header