ethernet detected though connection not established

Hardware fully working on Debian etch.
With KNOPPIX 5.0.1 from CD
Ethernet card detected

00:0d.0 Ethernet controller: Davicom Semiconductor, Inc. 21x4x DEC-Tulip compati
ble 10/100 Ethernet (rev 40)
Subsystem: Unknown device 4554:434e
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at d000 [size=256]
Memory at cfffcf00 (32-bit, non-prefetchable) [size=256]
Expansion ROM at cff80000 [disabled] [size=256K]
Capabilities: [50] Power Management version 2

line-led on Zyxel router blinks, though no internet connection is established. I also noticed durink knoppix launch that DHCP was launched.

# dhclient
which I use on debian, is not recognized by knoppix

thanks for help
francesco

Knoppix uses pump and not dhclient. This is one of the differences between Debian Etch and Knoppix. pump performs about the same functions as dhclient. I don't use it very often, but the options are all given in the man pump. To see what your network settings are, type pump -s. pump -i eth1 will make eth1 try to get an ip from your dhcp.

You can also try using the network card configuration option which is at Knoppix menu (penguin) -> network/internet -> network card configuration.

#pump
#pump -s
#pump -i eth1
all reported <operation failed>

#pump -i eth0
communicated with router but after a while <operation failed>

Re-tried network config: protocol dhcp
sending DHCP for device eth0
<failed>

I did not attempt no dhcp protocols, although I know data for router and provider, in fear of disrupting my networking in Debian at a period i cannot afford that.

In conclusion, for the time being, I am down with networking and worse with card reader (as an attempt before going to buy expensive flash card for a scientific travel in the south seas, ideally bringing with me knoppix and flash card). That is bad because i risk to bring with me an OpenOffice Impress presentation that I might like to change on place.

I recognize however that want I would like to have it is not so obvious to get.

francesco