ssh also has a "KeepAlive" option you could try.

Regards,
Onno


On 9/22/05, Steven M. Bellovin <smb@cs.columbia.edu> wrote:
> In message <75ff70b05092202101d972633@mail.gmail.com>, Onno Ebbinge write=
s:
> >Do you guys have "KeepAlive" on?
> >
> >A statefull firewall has timeouts on state table entries, keep alives sh=
ould
> >reset them so they never time out.
>
> Right.  I put this my /etc/sysctl.conf file, mostly to cope with hotel
> NAT box timeouts, which are optimized for Web traffic.
>
>
> net.inet.tcp.keepidle=3D1800
> net.inet.tcp.keepcnt=3D64
>
>
>
>                --Steven M. Bellovin, http://www.cs.columbia.edu/~smb
>
>
>