Tuesday, January 19, 2010

Gmail is on IPv6! [UPDATE: Only selected ISPs]

UPDATE: Gmail is indeed on IPv6, but only via ISPs participating in "Google over IPv6". The post below was on a KPN Hotspot, which is connected to Xs4all, which is such a participator.
Pity. Normal users with non-IPv6 ISPs have to wait. :-(


Wow, Gmail is on IPv6! See the output below, and the screendump with IPv6 addres in right lower corner.

Compliments to Google! Google seems to be the only company that *does* IPv6 instead of only *talks* IPv6.



sander@quirinius:~$ host mail.google.com
mail.google.com is an alias for googlemail.l.google.com.
googlemail.l.google.com has address 74.125.77.83
googlemail.l.google.com has address 74.125.77.18
googlemail.l.google.com has address 74.125.77.19
googlemail.l.google.com has IPv6 address 2a00:1450:8005::53
googlemail.l.google.com has IPv6 address 2a00:1450:8005::11
googlemail.l.google.com has IPv6 address 2a00:1450:8005::12
googlemail.l.google.com has IPv6 address 2a00:1450:8005::13
sander@quirinius:~$

sander@quirinius:~$ ping6 -c4 mail.google.com
PING mail.google.com(2a00:1450:8001::11) 56 data bytes
64 bytes from 2a00:1450:8001::11: icmp_seq=1 ttl=53 time=162 ms
64 bytes from 2a00:1450:8001::11: icmp_seq=2 ttl=53 time=80.2 ms
64 bytes from 2a00:1450:8001::11: icmp_seq=3 ttl=53 time=88.8 ms
64 bytes from 2a00:1450:8001::11: icmp_seq=4 ttl=53 time=75.4 ms

--- mail.google.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3007ms
rtt min/avg/max/mdev = 75.440/101.726/162.418/35.367 ms
sander@quirinius:~$

3 comments:

Iain said...

I'd have to disagree, there's no AAAA record for imap.gmail.com, smtp.gmail.com, any of the gmail MX records etc...
so while I can get to the web interface @mail.google.com using ipv6 it's not exactly useful for anything until the rest of the service gets IPv6 addresses as well

Anonymous said...

+1

you may be able to access the web interface over IPv6 - but they don't do SMTP over IPv6 - so any email sent from a @gmail.com address towards an IPv6-only mail server is gonna go to the lost packets limbo . . .

Anonymous said...

Too bad this breaks SPF...