Managing networking

Network connections

List network connections

1. Open the nas-tui utility from the command line

2. Under the System section, select the Networking option

3. Under the Network: Configuration menu, select Show connections

Modify network connections

This page will let you change the IP address and other common network settings for a selected network interface. Changing IPv6 settings via the nas-tui utility is not currently supported.

Service interruption

Making any change to the network interface will result in the network interface being restarted. This will cause a service interruption for any users connected via this interface.

1. Open the nas-tui utility from the command line

2. Under the System section, select the Networking option

3. Under the Network: Configuration menu, select Modify connection

4. Select an interface from the list on the left. Once selected, its current configuration will be populated in the fields on the right.

5. Modify the fields you require. Setting the IPv4 mode to ‘Auto’ will result in the interface trying to get an IPv4 address via DHCP.

6. Click the Save button

7. The network interface will be restarted

Troubleshooting

Connectivity issues

You can troubleshoot connectivity issues with the ping utility to establish if two systems can communicate over the network:

1. Open the nas-tui utility from the command line

2. Under the System section, select the Networking option

3. Under the Network: Troubleshooting menu, select Ping

4. Enter the IP address or fully qualified domain name of the system you want to ping

5. Select the Ping option

DNS issues

You can troubleshoot DNS issues with the DNS lookup utility to establish if a specified hostname can be resolved by your chosen DNS server:

1. Open the nas-tui utility from the command line

2. Under the System section, select the Networking option

3. Under the Network: Troubleshooting menu, select DNS lookup

4. Enter the fully qualified domain name of the system you want to lookup

5. Select the Lookup option

Network bandwidth issues

Having a stable network connection with suitable bandwidth is critical to the stability and performance of the NAS system. You can test the available bandwidth between the NAS and another system with the iperf3 tool. Follow the instructions below to start the iperf3 server on the node:

1. Open the nas-tui utility from the command line

2. Under the System section, select the Networking option

3. Under the Network: Troubleshooting menu, select iPerf3

4. Select the Start server option

5. On your other system, start a bandwidth test with the NAS. The command varies between different operating systems, however, it should look similar to the command below:
   

   CODE

   # Test bandwidth from client to NAS
   iperf3.exe -c [ip-address-of-the-nas]
   
   # Test bandwidth from NAS to client
   iperf3.exe -c [ip-address-of-the-nas] -R

6. When you have finished testing the system, click the Stop server and show results option

7. The results of the bandwidth test will be displayed