On Sat, Dec 23, 2000 at 09:31:56PM -0200, Cesar Eduardo Barros wrote:
>
> I've been doing some experiments with the keepalive code in 2.4.0-test10 here
> (I want to avoid the 2.2.x NAT I'm using (for which I don't have root) from
> timing out my connections). To test it, I reduced both tcp_keepalive_time and
> tcp_keepalive_intvl to 1. Using ethereal, I saw that the keepalives were sent
> as expected, but only for one of the two idle TCP connections I had to a given
> host (I was testing with two remote hosts, each with two idle TCP connections,
> one in port 5500 and the other in port 5501). I only saw activity on 5500, yet
> netstat told me both were still active.
I just tried it and it works fine here with 2.4.0-test13-pre
You should be aware that the sysctls are only picked up after a timer timeout
or when a socket is newly created. When the sockets are already active it
takes a timeout for them to take effect. The default timeout is 2 hours.
-Andi
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