#154 Port forwarding replaces original source IP with router IP

When forwarding a port in libreCMC all incoming packets are modified as if the origin was the libreCMC router. This can impair online services listening behind the router: * email server's SPF checks fail * ... ---- I also found an [archived OpenWRT TracTicket](https://dev.archive.openwrt.org/ticket/12990) regarding this issue. ---- I am experiencing this issue on my `Netgear WNDR3800` with `libreCMC v1.5.9`. ---- Does anyone know of any way to change this behaviour?