Determining IP Address?

R4NG3R · #1 June 4th, 2003, 01:43 PM

when RedHat 9 is checking everything at the boot it says.

Determining IP Address for eth 1: Failed Check cable.

whats that mean?

twistedcranium · #2 June 4th, 2003, 02:22 PM

eth, eth0, eth1, etc. are the device names for your ethernet card(s) also known as network interface cards. Typically eth0 would be the first detected card and then eth1 and so on for as many cards as you have installed.

This network card needs to be assigned an IP address as a first step to connecting itself to a network. This assignment can be done two ways, automatically upon startup by a process called DHCP or manually assigning it a fixed IP address.

My suspicion based on your 'error' message is that the system is requesting an IP address via DHCP and there is no server/system out there to supply the DHCP service. By default the Red Hat 9 install assumes your network card will get an address by DHCP. If you don't have a DHCP server you should give the eth device a set IP address.

(again, those Red Hat installation notes that PostCode, Ceh, and I posted in the "Give Me Linux or Give Me Death" post. Have details about this)

twistedcranium · #3 June 4th, 2003, 02:34 PM

In RH 9, if you want a GUI (graphical) application to check and edit your network interface settings click the on Red Hat menu, and then select SYSTEM SETTINGS > NETWORK. If you're not root, it will ask for the root password in order to allow you access to the application.

(alternately you can access this gui app via the command line, type redhat-network-config)

PostCode · #4 June 4th, 2003, 02:53 PM

You can display the ip of the computer from the command line using ifconfig. You have to logon, using a terminal, using "su -" without quotes to use the command though. You must use that format. Loggin on as "su" and not "su -" will not grant you privilage to use it.

The ifconfig will display alot of information, including packets information about each eth connection.

twistedcranium · #5 June 4th, 2003, 03:09 PM

and by no means should you tinker with any of the settings for the device 'lo' at an IP address of 127.0.0.1

R4NG3R · #6 June 4th, 2003, 10:30 PM

ok thanks, i'll give it a try