Date: Wed, 9 Sep 1998 11:32:11 -0500 (CDT) From: Mark Tinguely <tinguely@plains.NoDak.edu> To: dh@enter.net, hackers@FreeBSD.ORG Subject: Re: Help with tunneling..... Message-ID: <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. --mark. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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