Hello,

I'm wondering if anyone can provide some insight on how Adelphia handles
DHCP and IP addresses? I know that IP addresses change very rarely with
Adelphia, but I'm assuming this is for a couple reasons:

1.) DHCP lease is extremely long?
2.) The customer has a router or computer system that is always on?

But would you still maintain the same IP address if your computer system was
connected directly to the cable modem and wasn't always kept on? For
example, if I turned my computer hooked up to Adelphia cable off when I went
to work, is it much more likely that when I came home I would have a new IP
address when my computer boots up? Or does that not matter? Perhaps the
cable modem itself (which *is* usually always on) gets the IP address and
holds it for you for when you turn your computer back on?

I really appreciate all the advice on this ..

Thanks!

Thundersmash wrote:

Your computer will always first ask the DHCP server if it's last used
(or currently used) IP address is available again, and the server,
unless specifically configured otherwise, with reassign the same
address. If you stop using the address, the DHCP server won't likely
serve it to an existing client on the network because that other client
will be asking for it's own last IP address as well. Typically the DHCP
server will also assign a previously unassigned address in the range it
has before it assigns a previously assigned address even if there is
currently no active lease at the time. The net result: You will only get
a new IP if there is a change in the range of available IP addresses the
server has to give, or you've been offline for a very long time.

Lease time is not a significant factor. Typically if the network admins
are anticipating doing some work that may result in a renumbering of
some or all of a segment, they will have the server give out relatively
short leases to lessen the length of time that it takes for all clients
to request a lease renewal (which then could result in a change.)
Keeping that in mind, an excessively long default lease time means
longer turn-over, and less flexibility to make fast changes as needed.

And no, your cablemodem doesn't hold your computer's IP address.

--
Warren H.

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Warren,

A very well-reasoned response and explanation.

On Fri, 26 Sep 2003 01:22:05 GMT, "Warren" <wholzem@hotmail.com>
wrote:

Thanks Warren!

"Warren" <wholzem@hotmail.com> wrote in message
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