[lug] RedHat LAN comm problem

[kenn]

Hi there,

Well it does sound as if the physical hardware is working. Which leaves 
us to the routing table. Somewhere there is a problem. You can try this. 
'ifdown lo0' and then see what happens.

However - we could get more information by doing 'route -n' and seeing 
what is in the routing table. Somehow it does not know how to get out 
eth0 or it thinks that the network in question (192.168.1.x in this 
case)  is suppossed to go out the local loopback. If taking down the 
loopback fails send us the the output of the route command.

Thanks
Ken

George Hyatt wrote:

>I'm having an problem getting RedHat 7.2 set up for use in a simple test
>project.  I could sure use some help!
>
>The test machines are 100 MHz Pentium jobs, with AM79C961A PCnet-ISA II
>LAN controller chips on the motherboard.  The RedHat install did not
>automatically set up any ethernet driver module.  RedHat site suggested
>the "lance" kernel module for this chip, a descendant of the original
>AM7990 LANCE.  modprobe apparently succeeds using the example parameters
>provided on the RedHat site, so I added that to /etc/modules.conf
>("alias eth0 lance", and "options lance io=0x320 irq=5 dma=3"), and set
>address and netmask via netconfig utility.  This seemed to work OK, with
>eth0 initialized at boot, no errors reported (that I saw). ifconfig
>indicates eth0 up and running, and the Lance turns on the link light at
>the ethernet switch.  route reports the usual set of three routes,
>including the critical one onto the local net (192.168.1.0, netmask
>255.255.255.0, via eth0).
>
>But when I actually try to use the LAN, other hosts on the local net
>report the test host unreachable.  When I try to ping out of the test
>host, no packets go out via eth0.  Before & after ifconfig results
>indicate that the ping packets are being routed to lo0, not eth0,
>despite the specified routes!  WTF?
>
>Please advise:  What did I configure wrong?  fail to configure?
>
>TIA -
>
>George Hyatt
>ghyatt at creativeconsulting.com
>
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