Re: [Python-Dev] PEP 3144 review.
16 Sep
2009
16 Sep
'09
10:04 p.m.
Eric.
"Greg Ewing"
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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Eric Smith