topic Re: Multiple connections on a server in Operating System - HP-UX

Multiple connections on a server

John Donovan — Thu, 06 Dec 2007 15:28:43 GMT

I am aware of the virtal interface solution, the task is a four-port lan card with a different ip on each -- 192.168.1.100;192.168.1.101;192.168.1.102;192.168.1.103.

Is this possible on HPUX11.xx running on PA-RISC RP3440?

Thanks,
--donovan

Re: Multiple connections on a server

Ivan Krastev — Thu, 06 Dec 2007 15:48:00 GMT

Each port from the card is visible in the system as a separate lan. Use ioscan -fnC lan to see correct names and set IP's in /etc/rc.config.d/netconf for each interface.

regards,
ivan

Re: Multiple connections on a server

Patrick Wallek — Thu, 06 Dec 2007 15:52:18 GMT

4 separate IP's on the same subnet but on different NIC's is NOT supported in HP-UX.

It might kind of sort of work, but your results will be unpredictable.

Re: Multiple connections on a server

Torsten. — Thu, 06 Dec 2007 15:54:21 GMT

A 4 port NIC is real, not virtual.

You need to use different subnets on each port or consider to use APA to "team" the 4 ports to one.

Re: Multiple connections on a server

A. Clay Stephenson — Thu, 06 Dec 2007 15:56:53 GMT

Your problem is that all of these IP's are on the same IP subnet and that is not officially supported although it can be made to work with some restrictions.

Refer to Document UTRANKBRC00011759 in the Knowledge base (if you have a support agreement).

Re: Multiple connections on a server

F Verschuren — Thu, 06 Dec 2007 18:17:22 GMT

what you can do is ad all the ip's to one port:
INTERFACE_NAME[0]=lan1
IP_ADDRESS[0]="192.168.1.100"
INTERFACE_NAME[1]="lan1:3"
IP_ADDRESS[1]="192.168.1.101"
INTERFACE_NAME[2]="lan1:1"
IP_ADDRESS[2]="192.168.1.102"
INTERFACE_NAME[3]="lan1:2
IP_ADDRESS[3]="192.168.1.103"
if you need more speet you can use apa to trunk the four-port lan.

Re: Multiple connections on a server

John Donovan — Thu, 06 Dec 2007 20:23:26 GMT

Thanks for all responses.

We know how to set up the virtual interfaces, but since the application requires a separate connection for each instance and the customer doesn't want them on the same lan port.

We had set up one server by assigning each interface with an IP. This should work for us, but will know for sure after the application is installed.

The knowledge base document explains the "gotcha's", the HP Support stance, and confirmed our set up.

Again, thanks to all.

--donovan