On 2019-10-29 15:35, Otto Moerbeek wrote: ... > > This is not true; a little script their are more sizes failing. With -p 00: > 31 nok > 95 nok > 151 nok > 247 nok > 311 nok > 375 nok > 407 nok > 471 nok > 503 nok > 759 nok > 791 nok > 823 nok > 855 nok > 983 nok > 1015 nok > > With other -p arguments this varies a bit, but only odd packet lengths > are reported. This is the script: > > #!/bin/ksh > for i in $(jot 1025); do > if ! ping -w 1 -c 1 -s $i -p00 10.1.1.3 > /dev/null; then > echo $i nok > fi > done Some time back, (Oct 26, 2013) I reported something similar. Rather than doing one ping, I did a "flood" ping of 100 packets, and saw some really weird stuff, all packet size related. Some didn't work at all, some would work perfectly, some would drop SOME packets, a number would drop ONE packet sometimes, never two or more.
My really bad ones were also odd sizes, but I saw lesser problems on at least -s480. Mine was a Beaglebone Black, with its cpsw(4). https://marc.info/?l=openbsd-bugs&m=138275913126582&w=2 Nick.
