DD-WRT Forum :: View topic - NAT Loopback (port forwarding ...
forum.dd-wrt.com › phpBB2 › viewtopicMar 07, 2011 · NAT loopback is once again working since build 19969. This fix should only be needed for builds between 15760-19969. I spent some time thinking about the best way to fix loopback. Despite some bad documentation throwing me off before, I found that it's possible to mark traffic destined to the WAN IP and then only masquerade the marked traffic. This should allow loopback to work for all local interfaces without causing problems when ebtables is loaded.