[52364] in North American Network Operators' Group
Re: any known users of NetRange 172.16.0.0 - 172.31.255.255
daemon@ATHENA.MIT.EDU (Tony Rall)
Thu Sep 26 23:31:59 2002
To: nanog@merit.edu
From: Tony Rall <trall@almaden.ibm.com>
Date: Thu, 26 Sep 2002 20:31:00 -0700
Errors-To: owner-nanog-outgoing@merit.edu
On Friday, 2002-09-27 at 03:14 GMT, "E.B. Dreger"
<eddy+public+spam@noc.everquick.net> wrote:
> It's difficult for TCP to work when there's no return path,
> unless one has highly-predictable ISNs. Chances are it's
> "inside" the network.
Perhaps you missed the point where the original problem was with an email
address:
" I have this very odd email address found with one of our employees....
<hidden_user@172.17.0.1>"
Email addresses, in fact everything in rfc822 headers, are unrelated to
tcp connectivity issues. If the employee got the email I'm willing to
assume there was connectivity. If you wish, I can describe exactly how
such an address could be in the rfc822 From header of a message that could
be delivered to you - even if 172.17.0.1 is the address of the originating
device and you have no way of reaching that address.
Tony Rall
