Iperf and 2 NIC's

TrueNAS General
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1

Hi,

I have a server with two NIC’s in, I am struggling to complete an Iperf test on NIC 2, however I can ping it.
NIC 1 IP 192.168.1.144
NIC 2 IP 84.84.84.176

There are multiple IP’s on the 192 network and iperf test to .144 is working correctly.
NIC 2 goes to a single PC with a 10Gb card, that single PC can ping 84.84.84.177 and can do an iperf test on the 192 network but when completing an iperf to .177 IP I get the following error:
iperf3: error - unable to connect to server - server may have stopped running or use a different port, firewall issue, etc.: Connection timed out

What am I doing wrong?

Thanks

2

Which is it?

3

Pc1 on larger network and connected to the server using 10gb

Pc1 192.168.1.144 and 84.84.84.176 (10gb)

Server connected to larger network and Pc1 via 10gb
Server 192.168.1.145 and 84.84.84.177(10gb)

Iperf from .144 to .145 works
Iperf from .176 to .177 gets the above error.

Pc1 running windows both networks set to private so following same firewall rules

Pc1 can ping .177

4

Not sure how I missed this before, but this is a public IP address. Do you own this IP block? If not, you shouldn’t be using it. If you need to use Class A network space for a private network, you should be using 10.0.0.0/8 or subnets within that.

2 Likes
5

oh, that’s embarrassing

Thanks very much works now