Date: Thu, 8 May 1997 13:12:08 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: danny@panda.hilink.com.au (Daniel O'Callaghan) Cc: smc@servtech.com, freebsd-hackers@FreeBSD.ORG Subject: Re: FTP Performance Message-ID: <199705082012.NAA25434@phaeton.artisoft.com> In-Reply-To: <Pine.BSF.3.91.970508103844.4479D-100000@panda.hilink.com.au> from "Daniel O'Callaghan" at May 8, 97 10:42:42 am
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> Ahah! Are they using Annex routers? If they are using an old version of > the software, they are probably not working with TCP extensions > properly. Try > > # sysctl -w net.inet.tcp.rfc1644=0 > # sysctl -w net.inet.tcp.rfc1323=0 > > If that works, turn off tcp extensions in /etc/sysconfig | /etc/rc.conf > > Alternatively, try reducing the MTU and MRU of ppp's tun interface to 552 > or 1064. That cured Robert Chalmers' problem with his ISP's Ascend routers. Alternately, upgrade the routers to a version of TCP/IP that is not in violation of the option negotiation setction of the TCP/IP RFC. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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