Very Computer

I've seen all the other posts concerning this card, but my problem is
*special* :)

I have a Linksys Etherfast 10/100 NIC (PCI). I have compiled and
insmodded the tulip.o that comes with the card, and it recognizes it
wonderfully upon boot as eth0. Now, my problem is, I can't do anything
with it.

What I know:

* I can ping "myself": 192.168.0.1
* From the other system on my network (via crossover cable, a Win98), I
can ping it fine.
* I should be connecting to the inernet via Win98's DHCP / "Internet
Connection Sharing."
* In linuxconf I have IP address set to 192.168.0.1, driver set to
tulip, interface set to eth0, and netmask to 255.255.255.0... (I have
also tried selectively eliminating various parameters to no avail)
* I cannot ping to anywhere from linux but myself.
* ifconfig sees the card fine with the IP address set up.

So, what am I doing wrong? All I'd like to do is to be able to use the
other computer's net connection via DHCP...

Thanks!

--
Brian Whitman

http://www.netspace.org/users/bwhitman
[ Sound information: http://www.crudites.org ]

1. If ping works then the card is working fine - this is a sofware
configuration (not driver or hardware) issue

2. DHCP is a protocol used for one server to automatically assign
addresses to all the other machines on a subnet. If you want to use
Win98 as a DHCP server and have your Linux machine get an address via
DHCP, you need to run a DHCP client (like dhcpcd) on the Linux box. I'd
suggest however that you *don't* do that, and just stick to using
192.168.0.1 as a fixed address.

3. By "Internet Connection Sharing" I think you mean having the Win98 PC
act as a masquerading firewall. I don't know if the software you have
will do this (AFAIK it isn't a standard feature of Win98, and WinGate is
the most popular add-on that does it). For this to work, you need two
things:

- have the Win98 machine set up for IP masquerading

- tell the Linux machine to use the Win98 machine as its default router
(gateway), like this:

  /sbin/route add default gw 192.168.0.2 eth0

Long term: I would give due consideration to swapping them round,
putting the internet connection on the Linux box and using it as a
masquerading router. Linux supports this very well, with built in
masquerading and firewall capabilties.

Dave
--
David Crooke, Austin TX, USA. +1 (512) 656 6102
"Open source software - with no walls and fences, who needs Windows
and Gates?"

Quote:> 3. By "Internet Connection Sharing" I think you mean having the Win98 PC
> act as a masquerading firewall. I don't know if the software you have
> will do this (AFAIK it isn't a standard feature of Win98, and WinGate is
> the most popular add-on that does it). For this to work, you need two
> things:

Quote:> Long term: I would give due consideration to swapping them round,
> putting the internet connection on the Linux box and using it as a
> masquerading router. Linux supports this very well, with built in
> masquerading and firewall capabilties.

thanks!

-brian

Actually, 'ping'ing one's own address does not indicate that the card is
working fine, since if you ping your own address, then the packet never went
out to the card.  Here's a demonstration:

bash$ /sbin/ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:E0:29:1F:5D:E7
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:28460 errors:0 dropped:0 overruns:0
          TX packets:26787 errors:0 dropped:0 overruns:0
          Interrupt:11 Base address:0xf400

bash$ ping -c 10 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: icmp_seq=0 ttl=64 time=0.4 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.3 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.3 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.3 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.3 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.3 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.3 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.2 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.3 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.3 ms

--- 192.168.1.1 ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss
round-trip min/avg/max = 0.2/0.3/0.4 ms
bash$ /sbin/ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:E0:29:1F:5D:E7
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:28462 errors:0 dropped:0 overruns:0
          TX packets:26788 errors:0 dropped:0 overruns:0
          Interrupt:11 Base address:0xf400

As you can see, while there were 10 pings, the transmit and receive counters
did not go up by 10.  

        Stu