Subnet mask
Syntax rules
- The 32-bit subnet mask must be one or more one-bits followed by one or more
zero-bits.
- The subnet mask cannot have any one-bits to the right of any
zero-bits. Therefore, a mask of 255.255.192.0 is valid because 255 is 11111111
and 192 is 11000000, but a mask of 255.255.208.0 is not valid because 208 is
11010000.
- The special subnet mask 0.0.0.0, which accepts all subnets,
is not allowed since it is already logically defined in the SOCKS
configuration file with the "All other FTP servers" entry.
The subnet value will be logically ANDed with the subnet mask to determine the subnet.