I'm creating port forwarding rules on my DD-WRT router (shown below) and want to allow all (any) source networks access. My thought was to specify 0.0.0.0/32 but that is not working. How do I specify this?
There are no "wildcards" for specifying IP address ranges. You need to use subnets instead. You can see examples of subnets in the "Source Net" column.
So instead of
in DD-WRT I believe you need to leave the field blank in order to set it to
You probably want to leave this field blank.
I had the exact same question when using the dd-wrt.v24-18946_NEWD-2_K2.6_mega-nv60k firmware on my linksys e3000. For some odd reason using the same port forwarding settings I've used in previous dd-wrt builds did not result in appropriate port forwarding (i.e. nmap always showed my router's external port 80 as filtered). I thought it was likely due to the new source_net field. I was wrong. No combination of subnet settings fixed the problem. I finally fixed things by upgrading my firmware using the ddwrt database as opposed to brainslayer's svn site (the database ended up being more current). I'm currently running dd-wrt.v24-21061_NEWD-2_K2.6_mega-nv60k and port forwarding works without any entry in the source_net field.