ipfw2/dummynet set new mss on thy fly
turbo23 at gmx.net
Fri Feb 6 16:24:17 PST 2004
Is it possible to modify the mss with ipfw2/dummynet? This is necessary
to fix wrong window implementations for example for adsl providers.
Something like "modify mss=1452 tcp from any to any out recv em0 xmit
em1 tcpflags syn". (Of course this string is wrong, it's just to give
you an impression).
I know there is tcpmssd port but it uses divert. I've to modify every
packet on gigabit lan (at least 200mb/s traffic). So tcpmssd is a bit to
We already have a ipfw1 patch and It's not that difficult to port it to
ipfw2. But I'm not sure if ipfw2/dummynet already have something similar
implemented by default.
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