Operating System - HP-UX
1834170 Members
2045 Online
110064 Solutions
New Discussion

Re: can two network cards have to IP in the same subnet

 
Ali Kouider
Occasional Advisor

can two network cards have to IP in the same subnet

hi

we have RP8400 with HP-UX 11i and three (3)network cards.

can we configure two cards (lan0, lan1) with two IP address in the same subnet. what i know it should deferent subnet.

can you please correct me if i am wrong

note: lan2 will be in defernet subnet
thank you
3 REPLIES 3
T G Manikandan
Honored Contributor

Re: can two network cards have to IP in the same subnet

Yes,it should be in different subnet.
If you want to configure two cards with ip from same subnet use APA(auto-port aggregation) product from HP

http://docs.hp.com/hpux/netcom/index.html#Auto%20Port%20Aggregation%20%28APA%29
Ravi_8
Honored Contributor

Re: can two network cards have to IP in the same subnet

Hi,

since rp8400 is an n-partition capable machine, all the 3 network cards can be on same subnet with different IP's ( each IP assigned to one n-partition)
never give up
Elmar P. Kolkman
Honored Contributor

Re: can two network cards have to IP in the same subnet

You can have multiple cards with different IP addresses in the same subnet, even in one instance of unix, but mind that traffic by default will go through one of the cards, depending on the routes.
If you want to connect 2 cards to the same subnet, you'd better look for the APA product to use it more effecient. Or, if you use MC Serviceguard, configure one interface as failover for the other (meaning 1 is active!).
Every problem has at least one solution. Only some solutions are harder to find.