Cheap 10gigabit Network Help?

[DaShesano]

Hi all,

I recently purchased two of these cheap 10 gigabit Mellanox Cards with the hope of making a cheap 10 gigabit network between my unRAID NAS and my personal desktop. However, after turning on both computers and connecting them together (via both SFP+ and RJ45) whenever my computers turn on, they are disconnected from my home network and refuse to communicate with each other, or any other computer on the network, however, when I unplug the cable from one of the cards, the computers connect to each other normally. I was hoping that Linus's video detailing how to do this would glean me some information, but I am only manually able to assign my NIC an IP in windows, I am wondering if it is possible to manually assign an IP to my NIC in unRAID. (I already have purchased the gear)

Thanks,

P.S: After assigning my workstation's NIC to a different IP I can use the internet, but I am still unable to use my unRAID NAS.

Another P.S: I may have accidentally deleted the DNS server address (it was set to no for get address manually, is there any way I can recover it as I am unable to access my server? 

[SCHISCHKA]

unRAID is based on linux so its definitely possible. I can't imagine the unRAID folks stripped away or made some funky custom networking. Ive never used unRAID and I'm struggling to google what distribution unRAID is based on. Have a look at networking on either the Debian wiki or Arch wiki, both are great. They will basically tell you to look for a networking config file in a location like /etc/network and the wiki will tell you what to put in.

 

https://wiki.debian.org/NetworkConfiguration

https://wiki.archlinux.org/index.php/Network_configuration

[Mikensan]

http://lime-technology.com/wiki/index.php/Configuration_Tutorial#Setting_a_static_IP_address

 

There's a starting point...

 

You need to have the SFP+ connection on a different subnet than your normal LAN. When you set a static IP on the SFP+ adapters, do NOT specify a gateway. You do not want either box to think there's a way out to other networks through the SFP+ adapter. You do not need DNS entries either, however if you must then use 127.0.0.1. Now when you want to access the unRaid box over SFP+, you must use the SFP+ IP address and not a hostname. Otherwise you could edit your hosts file and put a hostname in there, but too lazy to write that out right now.

 

Example

Personal LAN: 192.168.0.0/24

SFP+ LAN: 192.168.1.0/24