Martti Kuparinen wrote:
Yes, it is possible. You can use system tunables to accomplish that.

 > # sysctl net.inet.ipf

It seems these are not available in NetBSD. Any ideas how to add support
for these?

Oh, I found it. I'll try to modify these...

# ipf -T list | grep tcp
fr_tcpidletimeout       min 0x1 max 0x7fffffff  current 864000
fr_tcpclosewait min 0x1 max 0x7fffffff  current 480
fr_tcplastack   min 0x1 max 0x7fffffff  current 480
fr_tcptimeout   min 0x1 max 0x7fffffff  current 480
fr_tcpclosed    min 0x1 max 0x7fffffff  current 120
fr_tcphalfclosed        min 0x1 max 0x7fffffff  current 14400

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