GMail IPv6 IMAP Issue, or is it Just Me?
Stevens, Brant I.
branto at argentiumsolutions.com
Sat Jun 1 17:53:11 UTC 2013
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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