https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207598 --- Comment #4 from Max <maximos at als.nnov.ru> --- It seems that scrubbing on both tunnels eliminates the problem. scrub on gre0 max-mss 1360 scrub on gre1 max-mss 1360 -- You are receiving this mail because: You are the assignee for the bug.