As a slightly more serious reply (though Mike's URL did work surprisingly well..) I would assume we are going to see more and more RFC1918 addresses used by ISPs as IPv4 runs out and CGN is used more.

I'm aware of at least 3 ISPs in NZ doing this (we're one of them to some extent with a couple of our prepay products) and I'd expect there are more.

Cheers

Dave

On Thu, Feb 27, 2014 at 11:55 AM, Mike Cooper <mikec.cooper@gmail.com> wrote:

http://lmgtfy.com/?q=What%27s+the+BCP%2FRFC+that+says+that+routers+within+an+ISP+network+should+not+have+RFC1918+link+IPs%3F

HTH

On Thu, Feb 27, 2014 at 11:51 AM, Matt Grant <matt@mattgrant.net.nz> wrote:

Hi!

Know I am some small fry on the list, but your help would be
appreciated.

This would be useful in talking to my ISP about some PMTU issues that I
am having re a VPN going over PPPoE, with MTU 1480.

Thanks!

Matt Grant

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