Date: Tue, 20 Jan 1998 22:35:47 +0000 From: Brian Somers <brian@Awfulhak.org> To: Brian Reichert <reichert@numachi.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: PPP and IP forwarding Message-ID: <199801202235.WAA01028@awfulhak.org> In-Reply-To: Your message of "Tue, 20 Jan 1998 01:55:03 EST." <19980120015503.36830@numachi.com>
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> Howdy- > > I'm running 2.2.2-R, and userland ppp. > > Here's the question: are there any obtuse, obscure reasons why my > FreeBSD box would _stop_ forwarding IP packets? > > I have 'gateway_enable="YES"' in my rc.conf file, which does enable > IP forwarding in my kernel: > > # sysctl net.inet.ip.forwarding > net.inet.ip.forwarding: 1 > > I do have 'add 0 0 HISADDR' in my ppp.conf file, which does > successfully add a default route: > > # netstat -rn | grep default > default 205.161.0.7 UGSc 3 1 tun0 > > But, despite all of this, my other machines can't get out, and I > can't ping in to them. > > The silly thing is, I _had_ this working back in November, but > then, a month ago, it rotted, and now, I can't seem to get it to > work. > > Obviously, I somehow affected this magically, rather than the > hardware/software rotting, but, for the life of me, I can't guess > how I could have such a thing, nor how I would detect the point of > failure... > > So - a reprise of my question: despite my (seemingly) correct setup, what > _else_ could be in the way? Have you only got one IP number ? If so, you'll need to either run ppp with the -alias switch or ``alias enable yes'' in your ppp.conf file. > I'm *this* close to building the bpf device, to try to see if > packets are even getting to the ppp process.... You can always ``set log +tcp/ip''. I'm assuming you've got a recent version of ppp (see http://www.FreeBSD.org/~brian). > -- > Brian Reichert reichert@numachi.com > 37 Crystal Ave. #303 > Derry NH 03038-1713 USA Intel architecture: the left-hand path -- Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org> <http://www.Awfulhak.org>; Don't _EVER_ lose your sense of humour....
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