On Mon, 18 Apr 2005 00:31:20 -0700 Daniel wrote: DG> In my MacOS X, lo0 is 255.0.0.0, while en0 is 255.255.0.0, en0 (or any other en, for that matter), will vary depending on your local network. lo0, as previously stated, should always have a netmask of 255.0.0.0.