In article <#lNbvH7#(E-Mail Removed)>, kerryliles.nospam.
@rogers.com says...
> Can you explain the specifics of why you need to change it? I am not sure I can
> think of a scenario where it would not be correctly determined from the IP
> address (which I presume is how it is derived).
>
>
>
> "DC" <(E-Mail Removed)> wrote in message
> news:0ecd01c3fb5e$873bd9d0$(E-Mail Removed)...
> > Why is the subnet mask not user-configurable on these
> > base stations?
> >
> >
> > >-----Original Message-----
> > >The subnet mask is not a user-configurable option on the
> > MN700 (and MN100
> > >and MN500)
> > >
> > >--
> > >Jason Tsang - Microsoft MVP
> > >
> > >Find out about the MS MVP Program -
> > >http://mvp.support.microsoft.com/default.aspx
> > >
> > >"DC" <(E-Mail Removed)> wrote in
> > message
> > >news:107801c3fb5a$67339cd0$(E-Mail Removed)...
> > >> I have been able to adjust all settings on my MN-700
> > >> wireless-g router, EXCEPT for the sub-net mask.
> > >>
> > >> When I open the Base Station Management Tool, and
> > select
> > >> LAN settings - for some reason I cannot change the sub-
> > >> net mask.
> > >>
> > >> Seems simple ... any suggestions.
> > >>
> > >> Thanks for your time,
> > >> DC
> > >
> > >
> > >.
> > >
>
>
>
This may not be 100% rigorously correct, but I believe subnet mask
defines how to interpret the IP address (how many bits of the total 32
bits available represent the "network" id and how many represent the
"host" id). If you have a subnet mask of 255.255.255.0, in binary that
is
11111111 11111111 11111111 00000000
meaning the first 24 bits of the 32 bit address represent the network id
and the last 8 bits represent the host id (giving you a total of 256
possible values to use for the host address, although in practice some
of them are reserved). So with a subnet mask of 255.255.255.0, you only
have 256 (or so) IP addresses availalable for assignment to PC's,
printers, routers, whatever).
You might want to change it if you were interested in having more (or
fewer) total possible addresses available. The processing power of the
MN700 is likely such that trying to handle more than 256 would not be
possible (and so, there's no real reason to enable you to change it,
since if you did, AND managed to get it right, the router would probably
choke on the load, anyway).
--
Cheers,
BC
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