Setting up new server

[Tim Medford]

Hi all.

I have just powered up our new rp5470 server and I'm having a little trouble getting it on the network.

There are 2 core I/O cards and the bottom of the stack. At the very top, in slot 12 is a 10/100/1000 card that we spec'd. The system recognizes the card as lan1, and the core i/o card as lan0.

The cable is plugged into the lan1 card and I'm trying to configure it. There is no cable plugged into lan0. I got some message about not being able to configure additional cards, must do primary first? I cannot ping the server at all. I can get to it from a console however.

Do I have to use the core i/o card to get started and then configure the other one?

Thanks!

[Sridhar Bhaskarla · Accepted solution]

Hi Tim,

You don't need to use the core i/o card.

When the system boots for the first time after install (of factory supplied), it will ask for system and network parameters and configures the default interface (lan0). So, this might have happened.

Run the following commands to fix your problem.

#netstat -in

Find out the lan cards and the corresponding IP addresses. If 'lan0' is already configured, take out the IP address using ifconfig command.

#ifconfig lan0 unplumb

Repeat the same for other interfaces except for lo0 (loopback) and make sure the interfaces do not carry any IPs. Then run ifconfig command to assign the IP

#ifconfig lan1 your_ip netmask your_netmask

verify that the IP is bound

#ifconfig lan1
or
#netstat -in

Also, make sure that the speed of the interface matches with that you configured ont he switch. On HP servers, you will need to configure both switch and lan cards to 100 FullDuplex. Once your switch is set to 100FD, use the following command

#lanadmin -X 1 100FD

Then edit /etc/rc.config.d/netconf and /etc/rc.config.d/hpbtlanconf and make changes so that they will be permanent. You can see examples in those files for syntax.

-Sri

[Steven E. Protter]

You can not have two NIC cards on the same subnet.

If you set them up that way and you get no network connectivity.

At the console ifconfig lan0 down

See if you get connectivity then.

For the permanent fix, look at

/etc/rc.config.d/netconf

I have three new L2000 servers and went through the same problem. Learn from the fool Luke, no duplicate subnets on lan cards.

I would be happy to look at your netconf file if you wish.

Steve
Paid in points and the accolades of my peers.

[Brian M Rawlings]

Tim: there is a command to set up additional networks, it is:

set_parms addl_netwrk

See man page for set_parms. Alternatively, if not familiar with setting up networking at the command line, you can set up the second NIC via SAM.

Both set_parms and SAM simply do a scripted edit of the /etc/rc.config.d/netconf file mentioned earlier. I would recommend that you learn what this file does (it has some comments that indicate what it does, with examples), and just edit it yourself.

Once this file has the right networking setup, which will allow you to make any NIC your primary LAN, etc, I recommend a reboot to bring the changes into effect. It is possible to reset networking on-the-fly, but networking is set up early in the boot process for a reason, it is very basic to lots of Unix functions and processes. In your case (non-production, from your description), I'd reboot to come up clean on your new networking scheme.

Good luck, and keep at it, this starts to make sense once you beat your head on the side of the server a few times...

Regards, --bmr