Current IP address allocation from ARIN assumes that ISPs will use
private addressing and NAT for single-homed customers. They are
reasonable about exceptions, such as protocols that won't work
through NAT, but the exceptions need to be justified for the ISP to
continue getting address space.
If the customer is multihomed to more than one ISP, the requirements
for coordinating NATs among them are accepted to be impossible.
Multihoming alone, however, does not justify provider-independent
address space.
>I am a newbie
>
>I would hazard a guess that, for an ISP(assuming thousands of users) to do
>address translation would be a large technical feat, consuming more Hardware
>and other resources than the savings on registered IP addresses could
>justify
>
>Please correct me if I am wrong
>
>Tayta
><[EMAIL PROTECTED]> schrieb im Newsbeitrag
>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > Dear All,
> >
> > Anybody here who work for ISP that use NATed/PATed address for their
> > clients? Is it appropriate for ISP to use NAT/PAT?
> >
> >
> > Thanks
> >
> > Reden
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