Date: Fri, 1 Aug 2003 16:24:08 +0100 From: Bruce M Simpson <bms@spc.org> To: michael rabinovich <misha@research.att.com> Cc: freebsd-net@freebsd.org Subject: Re: T/TCP useless on FreeBSD 4.7? Message-ID: <20030801152408.GF27921@spc.org> In-Reply-To: <200308011514.LAA46005@chips.research.att.com> References: <200308011514.LAA46005@chips.research.att.com>
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On Fri, Aug 01, 2003 at 11:14:12AM -0400, michael rabinovich wrote: > Does anyone know the status of T/TCP support on FreeBSD 4.7? ... > Am I missing something (after all, FreeBSD is supposed to be a ref > implementation of T/TCP!) and if not is there is a simple way around > this problem, short of going back to earlier FreeBSD releases? I don't use T/TCP on my production 4.8-RELEASE system, and the following sysctl values look fairly default:- net.inet.tcp.rfc1644: 0 net.inet.tcp.syncookies: 1 net.inet.tcp.drop_synfin: 0 SYN cookies and T/TCP can't co-exist. Please do check the above sysctl values; I know RFC 1644 has to be enabled, and syncookies have to be disabled, as well as drop_synfin. HTH, BMS
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