Date: Thu, 10 Sep 1998 01:06:56 +0100 From: Brian Somers <brian@Awfulhak.org> To: Mark Tinguely <tinguely@plains.NoDak.edu> Cc: dh@enter.net, hackers@FreeBSD.ORG Subject: Re: Help with tunneling..... Message-ID: <199809100006.BAA04744@woof.lan.awfulhak.org> In-Reply-To: Your message of "Wed, 09 Sep 1998 11:32:11 CDT." <199809091632.LAA19144@plains.NoDak.edu>
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> > I can successfully build a PPTP tunnel if I > > do a straight dial-up from the windoze boxes into any of our terminal > > servers. However, if I attempt to tunnel through the FreeBSD box, it gets > > past verifying username and password, and then errors out with "network not > > responding". It appears PPP is not passing mickysoft's GRE protocol 47, as > > in the tcpdump below as the connection is made: > > user PPP does not pass many protocol types especially through the aliasing > code. Since I wanted to run a multicast router on the local PPP gateway, > I had to bypass the aliasing code for the IGMP and IPIP tunnel packets. see: > ftp://ftp.cs.ndsu.nodak.edu/pub/freebsd/misc/pppp_igmp.diff > > you want to tunnel out the IPPROTO_GRE packets through the aliasing code, > so you will also need to add to the aliasing section, which I did not need > to do. > > good luck. Hmmm, your changes were committed (with thanks) last June: : brian 1998/06/13 18:21:28 PDT : : Modified files: : usr.sbin/ppp ip.c : Log: : Deal with PROTO_IGMP and PROTO_IPIP packets correctly. : : Submitted by: Mark Tinguely <tinguely@plains.NoDak.edu> : This change will allow a PPP host enabled with the "-alias" option to : run mrouted. This does not intend to forward the IGMP nor tunneled packets : to another host on the far side if the tun0 interface. : : Revision Changes Path : 1.42 +28 -2 src/usr.sbin/ppp/ip.c Of course, I'm talking ppp 2.X here. > --mark. -- Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org> <http://www.Awfulhak.org>; Don't _EVER_ lose your sense of humour.... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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