On Aug 15, 2013, at 12:13 PM, Adam Hunt <[email protected]> wrote:
> Thanks for confirming this. I'm glad that I'm not the only one and/or I'm not
> completely inept. I'll sit down later today and play with the various MTU
> settings (WAN, HEv6 tunnel, and the setting on the "advanced tab" of Tunnel
> Broker's site) and see what, if anything, I can get to work consistently.
>
> I don't know what browser you use but I found a simple Chrome extension that
> has been helpful in determining what protocol (v4/v6) is being using used to
> connect to any specific site. It's called IPvFoo and is available in the
> webstore (http://goo.gl/kxKVhx). It adds a little 4 or 6 icon on the right of
> the URI bar that when clicked on shows what portions of the page were served
> using what protocol.
>
> Again, thanks for confirming this. At certain points I was beginning to doubt
> myself as things would work on second and break for seemingly no reason the
> next.
>
> --adam
>
>
> On Thu, Aug 15, 2013 at 9:51 AM, Adam Thompson <[email protected]> wrote:
> I'm having the same problem as a recent reporter (whose email I already can't
> find).
> I've got a tunnel set up to HE.NET, and experience difficulty browsing to
> (e.g.) redmine.pfsense.org.
> Testing shows that the largest ICMP payload I can exchange is 1232 bytes
> ("ping -l 1232 redmine.pfsense.org" works, 1233 doesn't).
> If I stop and reload the page in my browser, everything works fine - I don't
> know yet if that's because the browser falls back to IPv4 or because the MTU
> problem suddenly fixes itself.
>
> -Adam Thompson
> [email protected]
> Tel: (204) 291-7950
> Fax: (204) 489-6515
Hi Adam (and Adam),
Seems easy enough to reproduce, assuming that my substitution of '-s' for '-l'
is legit.
jims-mini:~ jim$ ping6 -s 1232 redmine.pfsense.org
PING6(1280=40+8+1232 bytes) 2610:160:11:33:84b5:f958:6545:af1c -->
2610:160:11:3::100
1240 bytes from 2610:160:11:3::100, icmp_seq=0 hlim=62 time=1.625 ms
^C
--- redmine.pfsense.org ping6 statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 1.625/1.625/1.625/0.000 ms
jims-mini:~ jim$ ping6 -s 1233 redmine.pfsense.org
PING6(1281=40+8+1233 bytes) 2610:160:11:33:84b5:f958:6545:af1c -->
2610:160:11:3::100
^C
--- redmine.pfsense.org ping6 statistics ---
4 packets transmitted, 0 packets received, 100.0% packet loss
Note that I'm … "really close".
jims-mini:~ jim$ traceroute6 redmine.pfsense.org
traceroute6 to redmine.pfsense.org (2610:160:11:3::100) from
2610:160:11:33:84b5:f958:6545:af1c, 64 hops max, 12 byte packets
1 2610:160:11:33::2 1.888 ms 1.861 ms 1.461 ms
2 2610:160:11:12::2 1.984 ms 2.107 ms 2.303 ms
3 2610:160:11:3::100 2.172 ms 2.275 ms 2.250 ms
jims-mini:~ jim$
Given same, it almost has to be the pfSense box, since once I'm on redmine,
huge packets pass.
jim@redmine:/home/jim % traceroute6 -n he.net
traceroute6 to he.net (2001:470:0:76::2) from 2610:160:11:3::100, 64 hops max,
12 byte packets
1 2610:160:11:3::2 0.381 ms 0.336 ms 0.349 ms
2 2610:160:11::1 4.210 ms 1.249 ms 2.435 ms
3 2610:160:0:11::4 2.556 ms 2.611 ms 0.993 ms
4 2610:160:0:53::17 10.253 ms 10.212 ms 10.408 ms
5 2001:504:0:5::6939:1 12.735 ms 10.145 ms 15.192 ms
6 2001:470:0:258::1 32.502 ms 27.384 ms 27.439 ms
7 2001:470:0:24a::2 62.184 ms 43.638 ms 43.681 ms
8 2001:470:0:16a::1 53.841 ms 46.596 ms 53.421 ms
9 2001:470:0:2f::1 59.776 ms
2001:470:0:18d::1 46.394 ms 46.766 ms
10 2001:470:0:2d::1 55.180 ms 49.954 ms 49.308 ms
11 2001:470:0:76::2 50.513 ms 50.814 ms 50.959 ms
jim@redmine:/home/jim % sudo ping6 -s 3500 redmine.pfsense.org
PING6(3548=40+8+3500 bytes) 2610:160:11:3::100 --> 2610:160:11:3::100
3508 bytes from 2610:160:11:3::100, icmp_seq=0 hlim=64 time=0.106 ms
3508 bytes from 2610:160:11:3::100, icmp_seq=1 hlim=64 time=0.074 ms
3508 bytes from 2610:160:11:3::100, icmp_seq=2 hlim=64 time=0.076 ms
3508 bytes from 2610:160:11:3::100, icmp_seq=3 hlim=64 time=0.069 ms
3508 bytes from 2610:160:11:3::100, icmp_seq=4 hlim=64 time=0.074 ms
^C
--- redmine.pfsense.org ping6 statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 0.069/0.080/0.106/0.013 ms
jim@redmine:/home/jim %
That said, I'm on redmine with IPvFoo loaded, and it's reporting that I'm
hitting the IPv6 site, and I'm not having any issues.
We'll look into it and get back to you.
jim
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