On Friday 28 March 2003 07:26, seberino@xxxxxxxxxxxxxxx wrote: > Steve > > Thanks for the email. Let me rerephrase my question. > Perhaps I wasn't clear.... > > How can you have a rule on your INPUT chain that > only allows your local box's IP address if "local box IP address" can > change without notice due to your DSL ISP's decision? > > Chris > Hi Chris, If you are having one interface for all incoming traffic and one for outgoing traffic, then you can simply filter it by looking at the interface like: iptables -A INPUT -i LOCAL_IF -j ACCEPT You can also set up your rule so it allows traffic from the IP range you have internally: iptables -A INPUT -s LOCAL_NET -j ACCEPT The rules are a little primitive, but I hope you get the idea. /Kim