Connect two hosts on two separate 10GbE Nics without switch.

[helloha]

Hi,

Im experimenting with my new Chelsio dual port 10GbE nic.

I'm trying to hook up two clients on two individual ports on the same server.

However when I configure the second interface things stop working altogether.

I configured the interfaces on the server as follows.

CXGB-0 on server:
ipv4: 192.168.250.1
subnet: 128.0.0.0

Corresponding interface on client-0:
ipv4: 192.1.250.2
subnet: 128.0.0.0

CXGB-1 on server:
ipv4: 192.168.250.3
subnet: 192.0.0.0

Corresponding interface on client-1:
ipv4: 192.1.250.4
subnet: 192.0.0.0

As soon as I configure the second interface I can't reach the server and web interface from host-0.

I put both interfaces on different subnets but am I missing something?

Also I can set the second subnet mask 192.0.0.0 from the console, but not from the web interface. It says the subnet is already in use. Not sure what that is about.

Thanks!
Karel.

 

[zambanini]

do yourself a favour, use a "real" network mask. your masks are overlapping.
for example in your case 255.255.255.0 : )

 

[depasseg]

You have 30+ million ip addresses in that subnet space. You need to do more reading.

And 192.1.x.x is public IP space, so that's a bad address to choose. BBN will not be happy.

 

[helloha]

Not sure what you mean by "real". But in my case 255.255.255.0 is already in use by client-1 as it's the subnet for the 1GB port to my switch providing internet access.

 

[depasseg]

Not sure what you mean by "real". But in my case 255.255.255.0 is already in use by client-1 as it's the subnet for the 1GB port to my switch providing internet access.

255.255.255.0 by itself doesn't describe a subnet. You need the ip address to go with it. So you could choose 192.168.2.1/255.255.255.0 and 192.168.3.1/255.255.255.0 as 2 separate networks (subnetted) each containing 255 addresses.

I would highly suggest that you do some reading on subnetting and CIDR before you tackle this.

 

[zambanini]

helloha, depasseg already told you:
you need a basic knowledge of network and ip addresses.

a network mask divides the ip range - the mask itself doe snot to be unique.

 

[helloha]

Thanks for answering my noob question, will certainly do more reading!

 

[depasseg]

You can also search the forums for configuring a bridge. This allows your 3 systems to be in one subnet and use the 2 10GbE ports on the freenas as a switch.

 

[helloha]

You can also search the forums for configuring a bridge. This allows your 3 systems to be in one subnet and use the 2 10GbE ports on the freenas as a switch.

Yes I read about that, but taking things slow first . Will undoubtedly post again here regarding that endevour!

 

[Cheatdeath]

You can also search the forums for configuring a bridge. This allows your 3 systems to be in one subnet and use the 2 10GbE ports on the freenas as a switch.

I have a dual port Chelsio s320 on the way to do exactly this. Currently my Freenas has a Chelsio s310 that is direct connected to my workstation with the same Chelsio s310 and it works great. The plan is to put the new s320 dual port nic into the freenas for connection to my workstation and a new server im about to deploy that will use the extra chelsio s310.

If you could explain or point me to the process of adding the network bridge for this to work that would help me a lot, unfortunately when I search the forum for "configuring a bridge" I basically find this thread lol.

Thank you

 

[Mirfster]

I have a dual port Chelsio s320 on the way to do exactly this. Currently my Freenas has a Chelsio s310 that is direct connected to my workstation with the same Chelsio s310 and it works great. The plan is to put the new s320 dual port nic into the freenas for connection to my workstation and a new server im about to deploy that will use the extra chelsio s310.

If you could explain or point me to the process of adding the network bridge for this to work that would help me a lot, unfortunately when I search the forum for "configuring a bridge" I basically find this thread lol.

Thank you

Think this may be the thread you are looking for: Please help - 10gb-10gb-1gb setup without 10gb switch

 

[Cheatdeath]

Think this may be the thread you are looking for: Please help - 10gb-10gb-1gb setup without 10gb switch

Thanks I have checked that out, the thread is hard to follow. I am also now curious what effect jails have on the config. I have seen a few posts talking about jails being an issue. I am a noob on this stuff and just research until I figure it out. All help is appreciated.

Thanks