Date: Sun, 26 Aug 2007 11:44:00 +0400 From: MIZ0 <mich.admin@mail.ru> To: freebsd-questions@freebsd.org Subject: Re: TCP packets don't flow from external hosts to WinVista clients behind Message-ID: <46D12F40.5060500@mail.ru>
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> Could be TCP window scaling. See > http://en.wikipedia.org/wiki/TCP_window_scale_option > Or the plain old PMTUD problem described in > http://www.cisco.com/en/US/tech/tk870/tk877/tk880/technologies_tech_note09186a008011a218.shtml#backinfo > > =Adriaan= Nothing helps. I've tried to change client's mtu, even shrinked packets with ng_tcpmss - no effect. I don't understand why freebsd machines from internal network can't establish any TCP connection to external net too. Can ipfw or netgraph detect client's OS type and allow only Windows XP ? =))
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