[159420] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: [SHAME] Spam Rats

daemon@ATHENA.MIT.EDU (Jared Mauch)
Thu Jan 10 10:26:17 2013

From: Jared Mauch <jared@puck.nether.net>
In-Reply-To: <33874.2001:470:4917:0:5054:ff:fead:107.1357831030.squirrel@laughton.us>
Date: Thu, 10 Jan 2013 10:25:53 -0500
To: "Jima" <nanog@jima.tk>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On Jan 10, 2013, at 10:17 AM, "Jima" <nanog@jima.tk> wrote:

> On Thu, January 10, 2013 7:53 am, Suresh Ramasubramanian wrote:
>> As for v6 how popular do you see it getting for mail?
>=20
> Are you implying that when the internet otherwise moves on to IPv6, =
we'll
> still inexplicably use IPv4 for mail?

IMHO mail is one of the easiest "first things" to turn on for IPv6.  =
Nobody is going to really notice a 1s delay if they connect() and you're =
not listening on IPv6 but are on IPv4.

There are concerns from the spam/blacklist communities that IPv6 will =
make it too hard to roll-up spam information, so many enterprises will =
likely stick to IPv4 along the long-tail of deployment as it will nearly =
always work.

I also see lots of people with 2002: address in my mail-log relying on =
6to4 gateways, e.g.:

puck:~$ host doors.huapi.net.ar
doors.huapi.net.ar has address 190.136.177.222
doors.huapi.net.ar has address 168.83.68.202
doors.huapi.net.ar has IPv6 address 2002:be88:b1de::1

puck:~$ host warner.fm
warner.fm has address 66.59.109.136
warner.fm has IPv6 address 2002:423b:6d88::1
warner.fm mail is handled by 10 argo.pyxos.net.

puck:~$ host x25.se.
x25.se has address 83.227.190.248
x25.se has IPv6 address 2002:53e3:bef8::1
x25.se mail is handled by 1 x25.se.

I suspect folks will run these sorts of gateways for some time..

- Jared



home help back first fref pref prev next nref lref last post