[clue] Speedbump (Subnet Mask Problem): CenturyLink DSL Service - Need Assistance w/ Public Address Space (NW Configuration)

Charles Burton charles.d.burton at gmail.com
Fri Sep 28 15:26:33 MDT 2012


I'm puzzled that the net mask matters here as well. You don't have to set
the internal network to the same mask, you can just
On Sep 28, 2012 1:25 PM, "David L. Anselmi" <anselmi at anselmi.us> wrote:
>
> Jug Knot wrote:
> >
> > The next speedbump appears to be a limitation from both the Service
Provider (CL) and the router
> > manufacturer.   In acquiring a Static IP address from CL, they provide
a Class A address and a
> > Subnet Mask of 255.255.255.255.    Turns out thats a showstopper for
Cisco SoHo (Linksys)
> > equipment<
http://homecommunity.cisco.com/t5/Wireless-Routers/Subnet-mask-limitation/td-p/304093
>
> > .
>
> You're talking about the WAN port, right?  Doesn't the mask get set with
the IP?  That seems like a
> reasonable mask for PPP--if you can select PPPoE I'm surprised you have
to do anything with the mask.
>
> Dave
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I'm surprised that you have to do anything with the mask as well. You don't
have to set the internal network work to use that mask, the router should
just nat to it.
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