I do manage to read the manual, but let me clarify this. I am not allowed to set a buffer larger than 256KB with iperf:
$ uname -a OpenBSD odn1-fw-odn1-01 6.0 GENERIC.MP#0 amd64 $ iperf -s -w 256KB ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 256 KByte ------------------------------------------------------------ $ iperf -s -w 4MB ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 16.0 KByte (WARNING: requested 4.00 MByte) ------------------------------------------------------------ $ ANDREAS KRÜGER CTO Hosting and Infrastructure +45 51808863 a...@patientsky.com PatientSky AS Hovfaret 17 B, NO-0275 Oslo, Norway patientsky.com 2017-09-14 19:46 GMT+02:00 Chris Cappuccio <ch...@nmedia.net>: > ipsec tunnels don't use TCP > > iperf has the -w option > > Andreas Kr??ger [a...@patientsky.com] wrote: >> How would i set i for ipsec tunnels or iperf etc. then? >> ANDREAS KR??GER >> CTO Hosting and Infrastructure >> >> +45 51808863 >> a...@patientsky.com >> >> >> >> PatientSky AS >> Hovfaret 17 B, NO-0275 Oslo, Norway >> patientsky.com >> >> >> >> >> 2017-09-14 13:10 GMT+02:00 Janne Johansson <icepic...@gmail.com>: >> > >> > 2017-09-14 13:08 GMT+02:00 Janne Johansson <icepic...@gmail.com>: >> >> >> >> Since 6.1 I think the max is 2M, and not 256k. Many programs will also >> >> allow you to bump limits using setsockopt. >> >> >> >> >> > >> > httpd.conf: >> > server "secret.site" { >> > tcp { >> > socket buffer 2097152 >> > } >> > >> > rsyncd.conf: >> > ... >> > socket options = SO_SNDBUF=2097152 >> > >> > >> > -- >> > May the most significant bit of your life be positive.