Date: Fri, 28 Oct 2005 14:04:00 -0500 From: Eric Anderson <anderson@centtech.com> To: Arjan van Leeuwen <avleeuwen@gmail.com> Cc: freebsd-firewire@freebsd.org Subject: Re: One-way communication with fwip(4) between FreeBSD and MacOS X? Message-ID: <43627620.3060207@centtech.com> In-Reply-To: <d86b48730510281159l229bcb19v@mail.gmail.com> References: <d86b48730510281159l229bcb19v@mail.gmail.com>
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Arjan van Leeuwen wrote: > Hi, > > I'm trying to establish an fwip(4) connection between my Powerbook > running MacOS X 10.4 and my FreeBSD 6.0-RC1 host. I included fwip in > my kernel and assigned an IP address to the fwip0 interface. > > The weird thing is that it seems to work only one-way. I can ping my > Powerbook from the FreeBSD machine, I can even ssh to it, etc. But > from the Powerbook to the FreeBSD host, I get no replies to my pings, > and I can't access ssh. > > If I do a tcpdump on the FreeBSD machine on fwip0, I can see that the > ping requests arrive, but there's no answer: > > winston% sudo tcpdump -i fwip0 > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > listening on fwip0, link-type APPLE_IP_OVER_IEEE1394 (Apple > IP-over-IEEE 1394), capture size 96 bytes > 20:54:32.853931 IP 10.0.0.2 > 10.0.0.1: ICMP echo request, id 20738, > seq 0, length 64 > 20:54:33.854038 IP 10.0.0.2 > 10.0.0.1: ICMP echo request, id 20738, > seq 1, length 64 > 20:54:34.854122 IP 10.0.0.2 > 10.0.0.1: ICMP echo request, id 20738, > seq 2, length 64 > > It almost looks like there's a firewall setup to stop any incoming > traffic on the fwip interface (I have no firewall installed). > > How do I proceed in debugging this? > > Thanks, > > Arjan > > P.S. I'm not subscribed to the firewire@ list, please CC me on reply. If you run a tcpdump on fxp0 while doing the pings, do you see the packets leaving on that interface? You might send the output of netstat -rn also Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------
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