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Re: ADSL - nearly here!!
- To: ukha_d@xxxxxxx
- Subject: Re: ADSL - nearly here!!
- From: "Paul Gordon" <paul_gordon@xxxxxxx>
- Date: Mon, 02 Oct 2000 19:54:33 BST
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
No, it "shouldn't" - the DHCP specification states that a client
will
attempt to renew its lease with the server after 50% of the lease duration
has expired, continuing at every 50% of the remaining period, until it is
either renewed sucessfully, or expires, in which case the client will then
repeat the DORA-DORN sequence to request a "new" IP address.
- IE, "if" the lease period was 30 minutes, (Which if true is
staggering!)
the client would attempt to renew the lease after 15 minutes (50% of 30),
if
that failed, it would attempt to renew again after anothe 7.5 minutes (50%
of the remaining period of 15 minutes), if that failed, then again after
another 3.75 minutes (50% of the remaining 7.5 minutes) and so on....
a renewal should always result in the same IP address being used - the
lease
is still valid for the client, so the address cannot have already been
offered to any other client.
clear as mud?
Paul G.
> > If non-NAT the rumours are that it uses DHCP with a 30 minute
lease!
>
>Does that mean the IP address changes ever 30 mins?
>
>
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