comments please

Bill Manning bmanning at ISI.EDU
Tue Dec 8 19:39:41 UTC 1998

> On Tue, 8 Dec 1998, Bill Manning wrote:
> >,, are the prefixes called out
> > in RFC 1918. They are only for use in private networks that wish to use
> > the IP protocols. Network operations and End System administrators should 
> > ensure that these prefixes is not coded into systems or routed through any 
> > Internet infrastructure.  Since they have the appearance of "normal" prefixes, 
> > special precautions should be taken to ensure that they are not propagated 
> > in the Internet. 
> What about instances where an I/NSPs extends its use of these addresses to
> the customer's boundary router?  This becomes epseically important if the
> customer happens to have been doing its homework and using RFC1918
> addresses only to find (after signing the contract) that they collide with
> the provider's addresses.  Who wins in that case?
> Mohamad Eljazzar
> EET Data Communications

Well, RFC 1918 says these prefixes should not be propogated over the Internet
but can be used on/in Intranets.  I occasionally find it tough to discriminate
between the two ideas.


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