1833783 Members
2473 Online
110063 Solutions
New Discussion

lan card prob

 
SOLVED
Go to solution
khilari
Regular Advisor

lan card prob

Hi guys, well i wanted to know what does plumb mean in networking. The other problem is that i have 3 interfaces cards on my server and i went into the sam and tried configuring the second lan card. Now, i cannot telnet into the server at all. How do i go about accessing the server remotely.

Thanks.
8 REPLIES 8
Kent Ostby
Honored Contributor

Re: lan card prob

try to telnet via each ip address that you assigned to each card instead of the hostname.


"Well, actually, she is a rocket scientist" -- Steve Martin in "Roxanne"
A. Clay Stephenson
Acclaimed Contributor
Solution

Re: lan card prob

plumb means to setup the Streams needed for TCP/IP. It is normally done automatically when an IP address is assigned to an interface. Unplumb does the opposite.
Man ifconfig for details.

SAM is a very poor tool to use to configure network settings. I always configure the files in /etc/rc.config.d manually. As to why you can no longer telnet to your box, the possible reasons are legion. To name a few: 1) Duplicate IP addresses on multiple cards 2) Duplicate subnets 3) Assigning the wrong IP address ...

Almost certainly, you are going to have to get on the console to fix your network settings.



If it ain't broke, I can fix that.
Himanshu_3
Valued Contributor

Re: lan card prob

Hi Khilari,

try using the GSP login for the server and reconfigure the lan connectivity.

Cheers,
Himanshu
Steven E. Protter
Exalted Contributor

Re: lan card prob

shalom,

from server console

tail -f /var/adm/syslog/syslog.log

Try and resolve the ifconfig issue and get the NIC card on the network.

Attempt a telnet.

See if there is a record on the log.

inetd -l

Sets the enhanced logging on syslog if not already set.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Bill Hassell
Honored Contributor

Re: lan card prob

You probably do not have recent patches for SAM. SAM has a bad history of messing up all LAN connections when trying to add a new card. The problem is in /etc/rc.config.d/netconf. To return the server to normal, you need to restore the settings for the primary LAN card.


Bill Hassell, sysadmin
Ajitkumar Rane
Trusted Contributor

Re: lan card prob

Khilari,

Dow you have a Web console / remote console access. You need to get in to the system using the remote console access to fix the things remotely. Else walk to the data center.

Rgds,

Ajit
Amidsts difficulties lie opportunities
Sยภเl Kย๓คг
Respected Contributor

Re: lan card prob

Hi,

Is this a stand alone server, or a Cluster node. Mind it!, do not to use the SAM for configuring LAN interfaces. What might have happend here is a duplicate IP address. Login to your console / GSP check /etc/rc.config.d/netconf. Correct the problem and restart net service. Check nettl log and syslog.
Regards,
Sunil
Your imagination is the preview of your life's coming attractions
RAC_1
Honored Contributor

Re: lan card prob

You probally gave the ip_address to second lan card, and such addresses is in same subnet as that of firt card. HP does not support two nics on same subnet. You will have to logon to console and unconfigure one of them and restart networking.
There is no substitute to HARDWORK