'network unreachable' with PCMCIA card on Kubuntu Linux

I have a Dell Latitude laptop on which I just loaded up release 7.04
of Kubuntu Linux. The install seems to have gone well except I have no
access to my LAN through the ethernet port. When I try to "ping
192.168.2.1", I get the error message "connect: Network is unreachable".

I'm fairly sure that it is not a hardware problem because prior to
installing 7.04, myson was using an older release of Kubuntu and the
ethernet interface worked fine. I'm using a Xircom CBE2-100 Ethernet II
10/100 PCMCIA card. The ethernet status light on dongle is lit.

I did a grep for eth0 in /var/log and here are some of the lines which
look like they could have some meaning. To me it looks like something is
wrong, but I don't know what it might be.


daemon.log: ...... NetworkManger: <information>^Ieth0: Driver
'xircom_cb' does not support detection. ^IYou must switch it on manually.
daemon.log: ...... NewtorkManger: <information>^INow managing wire
Ethernet (802.3) device 'eth0'.
daemon.log: ...... NewtorkManger: <information>^IDeactivating device eth0.
daemon.log: ...... dhclient: DHCPREQUEST on eth0 to 192.168.2.1 port 67]

There were more messages from daemon.log, but they look innocent to me.
Unfortunately, I have not way to offload the message file from my laptop
to my PC so I can't include them all here without typing them all in.



Can anyone help with suggestions on what might be wrong?

Jim Anderson