[Python-Dev] PEP 3144 review. (original) (raw)

Eric Smith eric at trueblade.com
Thu Sep 17 00:04:32 CEST 2009


Eric.

"Greg Ewing" <greg.ewing at canterbury.ac.nz> wrote:

Nick Coghlan wrote:

Or, to put it another way, given an arbitrary host in a network (e.g. your own machine or the default gateway) and the netmask for that network, calculate the network address. Some people have claimed that the gateway address of a network isn't necessarily the zero address in that network. If that's true, then you can't calculate the network address from a host address and a netmask -- there isn't enough information. Furthermore, an IPNetwork object needs to be able to represent a network address whose address part contains bits that aren't in the mask.

I don't see why that would be considered a network address, then. It sounds to me like that's a host address plus a netmask.



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