Date: Fri, 28 Oct 2005 21:12:25 +0200 From: Arjan van Leeuwen <avleeuwen@gmail.com> To: Eric Anderson <anderson@centtech.com> Cc: freebsd-firewire@freebsd.org Subject: Re: One-way communication with fwip(4) between FreeBSD and MacOS X? Message-ID: <d86b48730510281212q6733e8abo@mail.gmail.com> In-Reply-To: <43627620.3060207@centtech.com> References: <d86b48730510281159l229bcb19v@mail.gmail.com> <43627620.3060207@centtech.com>
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Sorry for the second mail, forgot to reply to all and include freebsd-firew= ire@: 2005/10/28, Eric Anderson <anderson@centtech.com>: > 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 dec= ode > > 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? No. > > You might send the output of netstat -rn also winston% netstat -rn Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 192.168.0.1 UGS 0 952 fxp0 10/24 link#1 UC 0 0 fwip0 10.0.0.1 ff.ff.ff.ff.ff.ff.ff.ff.a.2.ff.fe.0.0.0.0 UHLW =20 1 2 lo0 10.0.0.2 0.11.24.ff.fe.36.85.28.b.2.0.1.0.0.0.0 UHLW =20 1 84 fwip0 1162 127.0.0.1 127.0.0.1 UH 0 36 lo0 192.168.0 link#2 UC 0 0 fxp0 192.168.0.1 00:40:f4:67:3e:64 UHLW 2 39 fxp0 1097 Thanks for your help, Arjan > > Eric > > > > > -- > ------------------------------------------------------------------------ > Eric Anderson Sr. Systems Administrator Centaur Technology > Anything that works is better than anything that doesn't. > ------------------------------------------------------------------------ >
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