On 27 February 2018 at 12:39, Kip Warner <kip@xxxxxxxxxxxxxx> wrote: > On Mon, 2018-02-26 at 17:31 -0800, Nathan Anderson wrote: >> Is one end or the other behind a NAT of some kind? > > Both are behind NATs. I've heard this can have something to do with > MTUs, but not sure. That's true. The problem is the combination of paths with differing MTUs and devices (which can include NAT devices) that do not pass IP fragments. This will show up in the non-decreasing Send-Q I described earlier. -- Darren Tucker (dtucker at dtucker.net) GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860 37F4 9357 ECEF 11EA A6FA (new) Good judgement comes with experience. Unfortunately, the experience usually comes from bad judgement. _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev