Date: Fri, 1 Jun 2001 12:54:43 +0200 From: Urban Olsson <Urban.E.Olsson@telia.se> To: Bjoern Fischer <bfischer@Techfak.Uni-Bielefeld.DE>, Urban Olsson <Urban.E.Olsson@telia.se> Cc: freebsd-hackers@FreeBSD.ORG Subject: RE: modified FreeBSD gateway Message-ID: <778DFE9B4E3BD111A74E08002BA3DC0D03DA524A@trab-hermes.haninge.trab.se>
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Hi again, What I have done so far is to use the natd daemon as an example but I have a problem. The divert seems to work but the problem is that I can´t get the packets in my userspace program. Is there some specific port that I should use for the divert socket? This is not very clear in the natd code. I can´t find where the port is set and if it is a special port reserved for the divert sockets. << Urban > -----Original Message----- > From: Bjoern Fischer [mailto:bfischer@Techfak.Uni-Bielefeld.DE] > Sent: Thursday, May 24, 2001 3:31 PM > To: Urban Olsson > Cc: freebsd-hackers@FreeBSD.ORG > Subject: Re: modified FreeBSD gateway > > > Hello Urban, > > > I have a question regarding modification of a FreeBSD > gateway (the Internet > > gateway for a LAN). What I want to do is to have the > gateway pick up the > > packets, modify the IP-header and resend the packet onto > the network. This > > is a little bit like a NAT but I want to be able to do it > differently and on > > my own terms. I guess that this means that I would be > forced to rewrite the > > gateway source-code so it behaves as I want it to. > > You can do this entirely in userspace. All you need is a > divert socket. > See the manpage divert(4). > > Björn Fischer > > -- > -----BEGIN GEEK CODE BLOCK----- > GCS d--(+) s++: a- C+++(-) UB++++OSI++++$ P+++(-) L---(++) !E > W- N+ o>+ > K- !w !O !M !V PS++ PE- PGP++ t+++ !5 X++ tv- b+++ D++ G > e+ h-- y+ > ------END GEEK CODE BLOCK------ > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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