Date: Wed, 19 May 2004 11:16:17 +0300 From: Peter Pentchev <roam@ringlet.net> To: "Dmitry A. Bondareff" <freebsd@mmk.ru> Cc: freebsd-hackers@freebsd.org Subject: Re: IP frag need Message-ID: <20040519081617.GE988@straylight.m.ringlet.net> In-Reply-To: <026201c43d69$b0d695d0$02010101@wall> References: <026201c43d69$b0d695d0$02010101@wall>
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[-- Attachment #1 --] On Wed, May 19, 2004 at 12:22:41PM +0600, Dmitry A. Bondareff wrote: > Hello hackers! > > I have two office in the Internet. > And now I trying to make VPN between it. > > I using mpd for it. > > > Client ---> (mtu=1500) FreeBSD (mtu=1024) ========== VPN over Internet > ======> (mtu=1024)FreeBSD (mtu=1500)---> WindowsNT > > Client trying to use mounted disk from WindowsNT > > 11.8.24.25 - WindowsNT > 11.8.11.1 - FreeBSD > > tcpdump info: > 17:26:55.100097 11.8.24.25.139 > 11.8.11.1.1049: tcp 1460 (DF) > 17:26:55.100175 11.8.11.1 > 11.8.24.25: icmp: 11.8.11.1 unreachable - need > to frag (mtu 1024) (DF) > 17:26:57.287737 11.8.24.25.139 > 11.8.11.1.1049: tcp 1460 (DF) > 17:26:57.287813 11.8.11.1 > 11.8.24.25: icmp: 11.8.11.1 unreachable - need > to frag (mtu 1024) (DF) > > As you can see IP frag needed, but WindowsNT don't want to do it. > > What I cat do on FreeBSD box to solve the problem ?? If you are using a recent version of mpd, try putting the following line: set iface enable tcpmssfix in your bundle definition in mpd.conf. G'luck, Peter -- Peter Pentchev roam@ringlet.net roam@sbnd.net roam@FreeBSD.org PGP key: http://people.FreeBSD.org/~roam/roam.key.asc Key fingerprint FDBA FD79 C26F 3C51 C95E DF9E ED18 B68D 1619 4553 No language can express every thought unambiguously, least of all this one. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAqxfR7Ri2jRYZRVMRAmzQAJ40Mls6g8ofe1luBN99AL488HVpogCfTngf /ZZUvwH8la6KjNsa/TfzUlM= =br6Y -----END PGP SIGNATURE-----help
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