Hey everyone,
I have a Debian server and TrueNAS box connected to a 1Gb router and wanted to add a direct 10Gb connection to improve data transfer speeds between the two. So I purchased two Chelsio T520-CR NICs, connected them with a DAC and assigned IP addresses to my network as follows:
Linux (1Gb) - IP: 192.168.1.108
Linux (10Gb) - IP: 192.168.2.108
TrueNAS (1Gb) - IP: 192.168.1.100
TrueNAS (10Gb) - IP: 192.168.2.100
When testing the 10Gb network, I'm able to issue successful ping commands using the 192.168.2 subnet, but when I try to run iperf, I get no response. See below.
PING:
192.168.1.100 -> 192.168.1.108 Success
192.168.1.100 <- 192.168.1.108 Success
192.168.2.100 -> 192.168.2.108 Success
192.168.2.100 <- 192.168.2.108 Success
IPERF (iperf3 -c IP):
192.168.1.100 -> 192.168.1.108 Success
192.168.1.100 <- 192.168.1.108 Success
192.168.2.100 -> 192.168.2.108 Fail
192.168.2.100 <- 192.168.2.108 Fail
In order to eliminate a hardware issue, I booted the Debian machine with a TrueNAS boot disk (since it has a known good copy of the Chelsio drivers) and I was able to successfully SSH into the TrueNAS machine. So I know all the equipment works.
Now back to Debian, I must have done something wrong but don't really know where to start. Does anyone have suggestions of what I could try to solve this issue? I feel like I've done everything I can.
Scheduled Maintenance: We are aware of an issue with Google, AOL, and Yahoo services as email providers which are blocking new registrations. We are trying to fix the issue and we have several internal and external support tickets in process to resolve the issue. Please see: viewtopic.php?t=158230