Date: Wed, 04 Feb 1998 13:18:02 -0600 From: "Jonathan E. Lyons" <parrothd@midwest.net> To: jeh@anubis.network.com (Jeff Henning), freebsd-questions@FreeBSD.ORG (FreeBSD Questions) Subject: Re: Networking blues...continued (fwd) Message-ID: <3.0.5.32.19980204131802.007b42b0@midwest.net> In-Reply-To: <199802041339.HAA23176@osiris.network.com>
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At 07:39 AM 2/4/98 -0600, Jeff Henning wrote:
>>
>> 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.
>> >>
>> >
>> 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
>
At this point I would start completly over.. :) ..First by removing ep0
from rc.conf. Then I would move both cards to dufferent slots, set the
IRQ's and I/O address to somethine else like IRQ 5 I/O 280, make those
changes in the visual mode of the kernel editor. Then try to bring the
interfaces up with
ifconfig ep0 10.10.0.1 netmask 255.255.255.0
If you still can't bring the interfaces up, then I would pick up some cheap
NE2000 cards, and see if the problem persists...
Also what's the number on the 3com cards? Btw here's what my ifconfig look
like...
1:09pm@cplkagan~>ifconfig -a
ed2: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
ether 00:40:05:49:3a:00
ep0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 10.10.0.1 netmask 0xffffff00 broadcast 10.10.0.255
ether 00:20:af:69:82:bf
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
inet 204.24.41.142 --> 209.6.64.21 netmask 0xffffff00
inet 204.24.41.1 --> 204.24.41.1 netmask 0xffffff00
inet 209.6.64.1 --> 209.6.64.59 netmask 0xffffff00
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
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