I am trying upgrade a long list of ipchains rules to iptables and am stuck. On ipchains I was able to create "ACCEPT" rules in the forward chain that would cause some packets (based usually on source IP address AND port number) to simply pass through the firewall unmasqueraded (they were kicked out of the chain before the MASQ rule).
How can I accomplish the same thing using iptables? Thanks for your help, --Karl
