GMail IPv6 IMAP Issue, or is it Just Me?

Jason Hellenthal jhellenthal at dataix.net
Sat Jun 1 20:00:09 UTC 2013


IDK,

But I get NXDOMAIN upon lookup of imap. But have all my clients using mail.google.com for imaps.

I get ipv6 on 2607:f8b0:4009:802::1015


-- 
 Jason Hellenthal
 Inbox: jhellenthal at DataIX.net
 Voice: +1 (616) 953-0176
 JJH48-ARIN


On Jun 1, 2013, at 13:53, "Stevens, Brant I." <branto at argentiumsolutions.com> wrote:

> Is anyone else having issues reaching GMail on IPv6 via IMAP, or is it just
> me?
> 
> Here's some of what I'm seeing:
> 
> It responds to ping...
> 
> imac01:~ branto$ ping6 imap.gmail.com
> PING6(56=40+8+8 bytes) 2001:470:8d30:b00c::bb0e --> 2607:f8b0:400d:c00::6c
> 16 bytes from 2607:f8b0:400d:c00::6c, icmp_seq=0 hlim=55 time=31.299 ms
> 16 bytes from 2607:f8b0:400d:c00::6c, icmp_seq=1 hlim=55 time=41.528 ms
> 16 bytes from 2607:f8b0:400d:c00::6c, icmp_seq=2 hlim=55 time=30.092 ms
> 16 bytes from 2607:f8b0:400d:c00::6c, icmp_seq=3 hlim=55 time=35.450 ms
> ^C
> --- gmail-imap.l.google.com ping6 statistics ---
> 4 packets transmitted, 4 packets received, 0.0% packet loss
> round-trip min/avg/max/std-dev = 30.092/34.592/41.528/4.470 ms
> 
> 
> TCP Sessions on v6 seem to time-out:
> 
> imac01:~ branto$ telnet -6 imap.gmail.com 993
> Trying 2607:f8b0:400d:c01::6c...
> telnet: connect to address 2607:f8b0:400d:c01::6c: Operation timed out
> telnet: Unable to connect to remote host
> 
> IPv4 Connects:
> 
> imac01:~ branto$ telnet -4 imap.gmail.com 993
> Trying 173.194.76.108...
> Connected to gmail-imap.l.google.com.
> Escape character is '^]'.
> 
> ^]
> telnet> close
> Connection closed.
> 
> and other connectivity via IPv6 works:
> 
> imac01:~ branto$ telnet -6 www.google.com 80
> Trying 2607:f8b0:400c:c04::68...
> Connected to www.google.com.
> Escape character is '^]'.
> 
> GET /
> HTTP/1.0 200 OK
> Date: Sat, 01 Jun 2013 17:08:58 GMT
> 
> <snip>
> 
> Connection closed by foreign host.
> 
> I've tried flushing my dnscache to make sure I'm not holding on to
> something that's not valid, but no dice.
> 
> -Brant
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