Muy guess is that he really has a /28 (16 addresses) and that they are
subnetted out of his current ISPs space which would not allow those to be
portable. They will have to reassign. When I did this most recently, I did
it over a weekend and everything worked out fine. I kept both circuits up
for the weekend and added new range IPs to all of the appropriate systems as
soon as the new circuit was in place, however we kept both IPs (old range
and new range) up on the servers over the weekend. That way we were assured
connections. If you are using NAT, it should be pretty easy. If all of
your systems are using public IPs, that makes things a bit more tricky, but
not too hard with just 16 addresses. Try it with 5 class C's and most
systems are servers with static IP assignment!
Good luck!
Tom McNamara
MCSE, CCNA
Account Manager, U.S. Datacom
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Brian
Sent: Wednesday, March 14, 2001 4:42 PM
To: [EMAIL PROTECTED]
Subject: Re: ISP related question
If you really have a /16 out of public space, I would suspect that would be
yours to keep. I would encourage investigation of this. That is a whole
lot of space.
Brian
"JP" <[EMAIL PROTECTED]> wrote in message
98muap$qvu$[EMAIL PROTECTED]">news:98muap$qvu$[EMAIL PROTECTED]...
>
> All,
>
> A simple question for those who have related exprience/knowledge:
> If we want to switch to another ISP, how soon we need to finish our
> readdressing?
> I understand as our current address is assigned by our current ISP, we
need
> to give back this address and migrate to a new range coming from our new
> ISP, we definitely want to how sufficient time for this process, just want
> to know how long most of the ISP allows for this kind mirgration. We have
a
> /16 address currently.
>
> Thanks
>
> JP
>
>
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