Re: [2.2.18] outgoing connections getting stuck in SYN_SENT

[Eric Lammerts]

On 24 Jan 2001, Mark Longair wrote:
> It turned out that this was caused by using autofw to forward a range
> of ports (2300-2400 in this case.)  It seems that these ports aren't
> reserved in any way, so eventually the server tries to use one as a
> local port on an outgoing connection.
>
> I'm looking at finding fix for that.

Tell the kernel to use a different range for automatically
assigned ports, that doesn't conflict with your forwarded ports.
For example:
echo "49152 59999" >/proc/sys/net/ipv4/ip_local_port_range

Eric

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