From: James Ventre (messageboard@ventrefamily.com)
Date: Wed Sep 14 2005 - 18:50:03 GMT-3
>The only way two devices can talk that are not using
>the same mask is if both have the same broadcast
>address and both fit into the range of the smaller of
>the two masks.
Don't forget that with the default router interface configuration ... IP Proxy ARP is enabled!
It's entirely possible to go in and out the same router interface.
James
Wes Stevens wrote:
> The only way two devices can talk that are not using
> the same mask is if both have the same broadcast
> address and both fit into the range of the smaller of
> the two masks. For example a router with an address of
> 192.168.1.254 with a /24 mask and a device with the
> address of 192.168.1.129 with a /25 mask will be able
> to talk to each other. When we put in ranges we often
> reserve a /23 range in our ip address plan and then
> use only the upper /24 of that range. In the future if
> that range needs to expand then it makes for an easy
> expansion. If not the other part of the range can be
> used seperately.
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