[152544] in North American Network Operators' Group
Re: Problems getting to Verisign's whois server on IPv6
daemon@ATHENA.MIT.EDU (Christopher Morrow)
Tue May 1 21:26:35 2012
In-Reply-To: <20120501232505.F1C7B2053A64@drugs.dv.isc.org>
Date: Tue, 1 May 2012 21:25:55 -0400
From: Christopher Morrow <morrowc.lists@gmail.com>
To: Mark Andrews <marka@isc.org>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Tue, May 1, 2012 at 7:25 PM, Mark Andrews <marka@isc.org> wrote:
>
> The server doesn't do PMTUD properly. =A0 Verisign were informed of this
> a while back. =A0How hard is it to let ICMPv6 PTB in so that PMTUD works?
>
> % whois -h 2001:503:3227:1060::74 example.com
>
> Whois Server Version 2.0
>
> Domain names in the .com and .net domains can now be registered
> with many different competing registrars. Go to http://www.internic.net
> for detailed information.
> [stalls here forever]
>
> The message is sent in 3 packet and you see packet 1 and 3, 2 is
> lost and despite selective acks it is never seen.
that appears to be the case :( setting MSS to 1420 seems to work for
me (at home, on a janky tunneled setup, because you know... ipv6 is
'hard' for vz to do :( )
-chris
