Hello, this is what Janne Johansson said in the earlier message: "Since 6.1 I think the max is 2M, and not 256k."
Therefore, not surprised if 4MB will fail. -- Regards, Ville On 14 September 2017 at 21:30, Andreas Krüger <a...@patientsky.com> wrote: > 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. >