Apologies for the vague title, I wasn't sure how best to describe this. This is a simplified description of my setup (with a made up WAN IP address): WRT54GL + Tomato 1.28 with LAN IP address 192.168.1.1 current WAN ip address 126.96.36.199 two PCs on the LAN: PC One IP address 192.168.1.101 PC Two IP address 192.168.1.102 PC Two is running an FTP server listening on port 21 'basic' port forwarding rule set up as follows: proto = Both src address = blank ext ports = 21 int ports = blank int address = 192.168.1.102 (i.e. PC Two) My issue is: on PC One, if I telnet to the the WAN ip address of 188.8.131.52 port 21 a connection is successfully forwarded to PC Two but the IP address that is recorded by the FTP server is the WAN IP of 184.108.40.206. I was expecting it to record the LAN IP address of PC One i.e. 192.168.1.101. The reason I was 'expecting' this is because I'm pretty sure it's the behaviour I have seen in the past with different firmwares (specifically HyperWrt 2.0). My questions: 1) is this the expected behaviour and my memory is wrong? 2) is there any way to change this to the behaviour I was expecting? I was thinking possibly modifying the routing table but I confess I do not really understand the concepts involved. Any help would be greatly appreciated, thanks in advance.