Date: Wed, 4 Feb 1998 07:39:22 -0600 (CST) From: jeh@anubis.network.com (Jeff Henning) To: freebsd-questions@FreeBSD.ORG (FreeBSD Questions) Subject: Re: Networking blues...continued (fwd) Message-ID: <199802041339.HAA23176@osiris.network.com>
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> > At 05:30 PM 2/1/98 -0600, Jeff Henning wrote: > >> On Fri, 30 Jan 1998, Jeff Henning wrote: > >> > >> > I am having problems getting my 2 PCs running 2.2.5 to talk > >> > to each other. I am using the 3Com Etherlink III Combo > >> > ethernet cards. I configured the cards with the 3Com > >> > utility as described in the mailing list archive. I have > >> > my pentium tower set up as a gateway and a 486 tower as a > >> > host (Using 10.0.1.x for IP addresses). The following > >> > files were set up: > >> > > >> > - /etc/hosts > >> > - /etc/host.conf > >> > - /etc/rc.conf > >> > - /etc/resolv.conf > >> > > >> > Here's the problem. I am running tcpdump on the pentium > >> > system to view traffic on the interface (unfortunately > >> > I can't run tcpdump from the 486 until I can recompile > >> > a new kernel). I can attempt to ping the pentium from > >> > the 486 and no traffic shows up on tcpdump. > >> > >> I can't help you until I know more about your network. ASCII art and > >> ifconfig -a / netstat -rn output would be very helpful. > >> > >> > >> Doug White | University of Oregon > >> Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant > >> http://gladstone.uoregon.edu/~dwhite | Computer Science Major > >> > > > > > > > > > ---------------------- --------------------- > > | P5/150 | | 486/33 | > > | slayer.network.com | | pantera.network.com | > > | 10.0.1.1 | | 10.0.1.2 | > > | | | | > > | | | | > > | | | | > > | | | | > > | | | | > > | | | | > > --------- | | | | > > | modem |--| | | | > > --------- | | | | > > | 3Com Ether III combo | | 3Com Ether III combo| > > ---------------------- --------------------- > > | Coax + terminator | Coax + terminator > > | | > > --------------------------------- > > > Have you checked the Coax/termintaors cable itself, and that the BNC port > is enabled on the cards? It maybe on auto or on RJ45...Make a small > crossover cable and see if that clears up the problem... > > later > I tried 2 different sets of terminators and 2 coax cables. I used the 3Com utility to program the card. I reprogrammed the cards last night to use the RJ45 ports and hooked both up to a 8-port hub. It appears that nothing is going out over the wires. Also, when I rebooted last night, the ep probe complained about the card being in "Plug and Play" mode but the 3Com utility still shows the card with PnP disabled. I put in a different card, reprogrammed, and still nothing is going out the RJ45 port. I specified the "link0 link1" flags in the ifconfig in rc.conf. Also, when rebooting my system hung when it was attempting to bring up the ep0 interface. I rebooted again and after all the fsck stuff (blah!) it came up again. I should also mention that before trying the hub, I tried using 2 different crossover cables on the RJ45 ports with the same results (or lack thereof). With the RJ45 port I now only see Opkts with no collisions or Oerrs in the netstat -I output. With the BNC port, every outgoing packet resulted in an Oerr and a collision. Any other ideas? Jeff Henning
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