HPUX system with 3 lan ports, IP addresses/subnetwork

[tvel]

Dear forum members,
We are facing a configuration issue during a network upgrade. Final configuration: an HP K-server running HP-UX11 has 3 lan ports equipped. Each lan port is dedicated to an application running on the server. This server (via a hub/switch) is connected to the nation wide lan/wan. The customer has given a range op IP addresses and a gateway (IP address eg. 188.8.x.x, GW 188.8.99.99). We can select an IP address for each server lan port. The applications have to address IP adresses via the lan/wan (eg. 188.40.x.x, 188.49.x.x, 188.60.x.x). One lan port needs connectivity with a fixed number of IP addresses. We are getting the feedback that this cannot work due to restrictions on the server (different lan interfaces = different subnetworks). Could somebody advise?
Many thanks in advance.

 

[SuperTekFreak]

Absolutely correct. HPUX + 2nic_on_same_net = ugly_nasty. In fact you get this on almost any OS.

I am not real clear as to what you are after, but I'll try anyway...I think you are saying your short 1 port.

You can however have on NIC on two nets. Let's sat 188.8.x.x was plugged into the hub/switch as well as all three interfaces. Now assign 188.8.x.x on lan0 say, then assign lan0:1 188.40.x.x (which is perfectly valid and legal in HPUX), then 188.49.x.x on lan1 and 188.60.x.x on lan2. All 4 interfaces will talk to each other (not really all that traffic is handled by the loopback int), and the data moving to 188.8.x.x is able to get back properly.


Tried it on my 11i box and it worked like a champ.

Let me know if I missed.

STF

 

[SuperTekFreak]

I forgot.

This is NOT, I repeat, NOT a good production solution. Test only!!

STF