Regular Expression to match IP address + wildcard

Question

I\'m trying to use a RegularexpressionValidator to match an IP address (with possible wildcards) for an IP filtering system.

I\'m using the following Regex:

Answer 1

asp:RegularExpressionValidator does not require you to double-escape backslashes. You should try:

([0-9]{1,3}\.|\*\.){3}([0-9]{1,3}|\*){1}