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RE: ISP's who assign unrouteable addresses
> My company has encountered two ISP's, US West and MediaOne, who assign
> unrouteable addresses (10.x.x.x) to some of their customers. The ISP's
> run NAT in the head-end of their cable network or ADSL
> network to translate
> those addresses before they hit the Internet.
>
> Obviously, an end-user wanting IPSEC is in trouble.
>
> Any thoughts about how to deal with this problem? I personally don't
> mind NAT if it is performed at the boundary between a stub network
> and the Internet. The owner of that network can NAT and employ a
> security gateway if he needs IPSEC.
>
> On the other hand, I think ISP's that use NAT are short-changing their
> customers. Is there anything we can offer a customer who is stuck
> with one of the unrouteable addresses?
How awful! I'm getting a cable modem installed next week, I hope this
doesn't happen to me.
Here's a solution: run IPv6 over IPv4. Then you will be oblivious to any NAT
at the v4 level.
Rich
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