The 192.168 address for private networks is class B, and therefore 16 bits long. (see RFC 1918.) Using less than 16 bits may result in problems connecting to machines on the Internet which have these addresses.
You would be better off using 10.0.0.0/8 or172.16.0.0/12 which are also allocated for private networks but offer more space for the host and/or subnet address. On Friday 12 Sep 2003 2:08 pm, Miark wrote: > Out of curiosity, why /10 and not /24? How many nodes > are on your network? > > Miark > > On Sat, 13 Sep 2003 00:00:46 +1200, Damon Lynch <[EMAIL PROTECTED]> wrote: > > Hi, > > > > I'm no postfix expert so I don't know if what I found was a bug or > > not, but in 9.1, this worked in main.cf > > > > mynetworks = 192.168.1.0/10 > > > > but postfix fails to deliver any mail like that in 9.2RC2, and > > instead this must be specified: > > > > mynetworks = 192.128.0.0/10 > > > > I guess it's something to do with a more recent postfix version > > (and there are probably good reasons for the change being needed), > > but my question is this: is there anything the postfix packager > > could do to ensure a smooth transition to avoid problems like this? > > Or was I doing something wrong with my config and 9.1 and was > > simply lucky to get away with it? > > > > Thanks! > > Damon -- Richard Urwin
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