TCP wrapper filter wildcard patterns

You can use the following patterns in service or client addresses:



 A string that begins with a dot character. A host name is matched if the last components of its name match the specified pattern. For example, the wildcard pattern .siroe.com matches all hosts in the domain siroe.com. 

 A string of the form n n n n m m m m. This wildcard pattern is interpreted as a net/mask pair. A host IP address is matched if net is equal to the bitwise AND of the IP address and mask. For example, the pattern   matches every address in the range   through. Note that  is not permitted as a mask; use CIDR notation with   instead. 

 A string of the form n n n n p. This wildcard pattern is interpreted as being in CIDR notation, where p is the routing prefix. The corresponding subnet mask, mask,  is p one bits followed by 32-p zero bits for a total of 32 bits. A host address is matched if the bitwise AND of n n n n and mask is equal to the bitwise AND of the address and mask. For example, the pattern   matches every address in the range   through. 



See also:
 * TCP wrapper filter syntax