TCP Connection hang - MSS again

Rozhuk Ivan at
Mon Apr 5 12:44:55 UTC 2021

On Mon, 5 Apr 2021 13:04:19 +0200
tuexen at wrote:

> > As I understand, in some cases remote host does not reply with MSS
> > option, and host behind router continue use mss 8960, that dropped
> > by router.  
> If the peer does not provide an MSS option, your local FreeBSD based
> host should use an MSS of net.inet.tcp.mssdflt bytes. The default is
> 536. So I don't think this should be a problem.

Thats it!
Thanks, it was ~64k in mine config.

More information about the freebsd-current mailing list