Why not renumber now and use NAT/PAT and then only renumber your serial
interfaces on your Internet Router and gateways and mail servers after the
switch???
-----Original Message-----
From: Richard Chang [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, June 26, 2001 1:04 PM
To: [EMAIL PROTECTED]
Subject: Re: POP relocation [7:9897]
Since you did not mention for sure whether you would switch ISP or not.
1. If you stay with the same ISP, they should be able to let you keep the
same IP number especially for those 2 /24s. If they plan everything ahead of
time and you keep the old IPs, it is indeed only going to be couple minutes
of downtime and you don't have to do anything on your router. Of course,
this is based on the assumption that they have good network engineers over
there taking care of your case.
2. If you are going to switch to another ISP, you would probably have to
change your IPs since you don't own those /24s. Theoretically, those two
ISPs could make arrangements to let you keep the old IPs. However, it is
going to be a big hassle and you would find it not worth the effort.
Richard
""Nick R"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Out ISP is relocating their POP and that is causing us to probably move to
> another ISP; however, they are offering us only several minutes of
downtime.
> Is that possible?
>
> They said it is only a circuit move. Nothing more.
> However, they are running BGP and they said they might have to renumber
our
> network.
>
> What would we have to do? Would we have to reregister our AS number?We
have
> two /24 networks with them. Also, we have another T1 line coming in with
> /28. Could we ask them to advertise our networks that we got from the
> previous ISP? Is that possible?
>
> Can one ISP take care of the static routing to our network even if we have
> addresses that they did not assign?
>
> What other changes would we have to make to our routers to have this
> "circuit move" go thorugh?
>
> Thanks,
> nick
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=9990&t=9897
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