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Dual NIC mobos

post #1 of 17
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I ask how are dual onboard NIC mobos intended to be used? The sales tag on my GigaByte boards reads "rapid transition from WAN to LAN" but I always homegrouped with a unmanaged switch or networked with a unmanaged switch for this. I have my Untangle with a added single port NIC card installed (the single port NIC card was like 12.00) I hardly want to give up a dual NIC mobo to do this but I would try it as a test.
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post #2 of 17
the dual nic is mainly for convenience, you can use the second for any number of things.

I have used mine to give internet temporarily to my laptop, friends laptops, x-box, builds for other people while I was working on them, and several other things. you can also use it for NIC teaming if your router supports it. and if you are on a network that has port security you can use it to share the connection despite the network policies limiting access to a single IP.
post #3 of 17
95% of desktop mobo's main purpose 3 words... Internet Connection Sharing

if it was a server than teaming would be viable unless your moving massive amounts of data around your network. otherwise totally and utterly useless.


edit
If you got a dual NIC board for a Untangle or other Firewall box, then I would say that is a totally viable option and one of the few reasons to actually say yeah grab it.
Edited by bratas - 3/23/11 at 10:00am
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post #4 of 17
There are many potential ways to use them. Some like teaming/redundancy, some just connect another PC to the second one, some use them to bridge two networks/routers, some use them to isolate connection for specific uses.

Personally, I have one physical network port dedicated to my normal use, while the second physical port is dedicated to my virtual machines.
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post #5 of 17
Thread Starter 
OK,thanks to all. If I did put a EP45-UD3P to work as a mobo for an Untangle box I would cry a bit over loosing a great OC mobo BUT it is cost effective when you want to go to 3 NICS as dual and quad NIC cards get expensive and for some reason my Intel DG31PR is giving me trouble when I have 2 additional NIC cards installed (as in Untangle detects the 3 NIC put a ping is not sucessful). My idea was use the GigaByte board with one extra NIC installed (to get my DMZ). +reps all.
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post #6 of 17
Well I think one of the selling points is "teaming" which is usually unnecessary. I guess it's a convenience having two, like if you wanted to bridge a connection or something from your computer.
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post #7 of 17
firewalls normally block ICMP traffic. that is why your ping was failing.
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post #8 of 17
Note; to ensure NIC compatibility and reliability, it is recommended to use the same model NIC no matter how many NIC's you use!
post #9 of 17
Quote:
Originally Posted by bratas View Post

if it was a server than teaming would be viable unless your moving massive amounts of data around your network. otherwise totally and utterly useless.
A few different types of teaming, but for the basic load balanced team, wouldn't this be a feature you're looking for? Sure, data sent to the server will only utilize one link but any data coming out of the server sends out packets alternating between 'up' interfaces, therefore downstream from the server you should have a bit more bandwidth to work with (distributed between multiple clients).
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post #10 of 17
Quote:
Originally Posted by beers View Post
A few different types of teaming, but for the basic load balanced team, wouldn't this be a feature you're looking for? Sure, data sent to the server will only utilize one link but any data coming out of the server sends out packets alternating between 'up' interfaces, therefore downstream from the server you should have a bit more bandwidth to work with (distributed between multiple clients).
Ethernet is already duplex. What you are describing is more teaming or link aggregation. Two 1Gbps become a 2Gbps connection.

Load balancing/failover when you have two indepenent connections to the same source. If one connection is slow or down, the load gets shifted to the other connection.
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