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[12:14] <brycec> Well this is odd... IPv6 ssh traffic just broke for me.
[12:15] <brycec> ping still works, suggesting something somewhere fucked up with MTUs all of a sudden
[12:15] <brycec> I still need to dig into this. Just wondered if anyone else was seeing this with ARP? Or a home HE.net tunnel for that matter?
[12:16] <mercutio> i've seen ipv6 mtu discovery not work
[12:16] <mercutio> have you tried mss clamping?
[12:21] <brycec> mss is clamped as I recall
[12:22] <brycec> What's weird is that "everything was working", meaning my SSH sessions were ticking along just fine. Then all of a sudden they hung... but not at the same time. (one hung at 12:09, the other at 12:10 according to the clock in tmux) so *something* *somehow* broke.
[12:26] <mercutio> they hung with large amounts of text?
[12:26] <mercutio> or typing?
[12:29] <mercutio> hmm my ipv6 tunnel seems to be working normally to arp
[12:29] <mercutio> my tunnel is tserv3.fmt2
[13:02] <brycec> mercutio: Neither. They were both just sitting idle at prompts. Noticed they'd hung when I tried to type, then looked at the clock in my tmux bar on each session and it had frozen.
[13:02] <mercutio> that doesn't sound mtu related
[13:03] <mercutio> unless something spat lots of text at it
[13:03] <mercutio> it sounds like what happens when something loses state for some reason
[13:03] <mercutio> and is enforcing state.
[13:06] <brycec> More digging later - it's an HE issue and I can't hit anything IPv6 from my home tunnel. http://sprunge.us/TPPC
[13:10] <brycec> Reverse mtr from vps3 back towards my home connection showing that it gets lost somewhere within HE http://sprunge.us/JgIR
[13:11] <brycec> So it's an HE issue -- Sorry for the noise.
[13:11] <brycec> (The pings as it turns out were hitting the wrong addresses earlier, oops)
[13:24] <mercutio> you're in fmt2 too?
[13:26] <brycec> No? sea1
[13:27] <brycec> *And no, https://tunnelbroker.net/status.php says no issues)
[13:27] <brycec> (
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[15:10] <mercutio> hmm i wonder what it is/was
[15:15] <brycec> According to mtr, looks like all is well now. The missing node in both directions was 100ge14-1.core1.pdx1.he.net so I guess they had a brief routing issue.
[15:16] <brycec> (or router issue, technically)
[15:20] <brycec> Side-by-side comparison of mtrs in both directions, before and after http://sprunge.us/UcjD
[15:57] <mercutio> ahh
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[20:23] <nathani> brycec: do you use netflix over your he.net tunnel?
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[21:18] <brycec> LOL nope, no thanks to Netflix.
[21:18] <brycec> nathani: Not since Netflix classified HE as a proxy service.
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