NAT 1:1 Please match requested format

[Xyemox]

Lets start by saying I am a n00b when it comes to PFSense.  I have spent the last day and a half going over the WIKI  for answers, sadly not very well maintained.

I am attempting to create what should be a simple 1:1 NAT entry. But when I attempt to save it I get an error popup on my internal IP address that reads "Please Match Requested Format".  I am putting in an actual IP address and yet it does not like the format.  Since the error tells me nothing of any use I am hoping someone on here can help.

[NOYB]

I'd say what the error tells you is very useful.  Try using it in the forum search.