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Multi ip address in one machine

dpdr
dpdr asked
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Last Modified: 2013-12-23
Is it a good idea or are there any rules for a server with more than 1 NIC to have ip addreess that put both NIC's on the same segment?
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dhm

Commented:
Depends on the machine/OS and why you want both NICs on the same segment.  If it's just to have multiple IP addresses so that you can (for example) run several different Web servers on the same hardware, most OSs allow you to put several aliases on a single interface, so you don't need the extra card at all.  If you want to load share/increase throughput, you'll have to look into the OS very carefully, to see if it can do it.

Author

Commented:
The case that started the question is that 1 of the cards is 10bateT and the other is 100baseT. The vendor (HP) does not think that this is a good idea. I'm In agreement and looking for resons  not to do something that is not a good idea just to make it simple for the network people.

Commented:
You get the traffic of both cards in the same machine, this makes  the machine work double for most networking issues. If you don't have any justification to put the card then don't do it. In computers, at least from my point of view, the less components you have the less problems you get.

  A typical case where two cards are justified is subnetting or routing, here is not even a choice is a need. IF that is your case then you have to use both cards.

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Author

Commented:
Thanks thats the kind of answer I was looking for
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