LAN Access Policy - issue with linux

[Decaone]

Hello everyone, 

A new challenge appears, not sure if it's been asked already.

We're trying to limit accesses to wired LAN using Linux sstems.

As Linux cannot use Tags, is there a way to use computer names?

I see that the switches get the computer name when the computer is connected to the LAN port.

I could use MAC Address, but the problem is that we are using USB Dongles for LAN, since our computers don't have LAN ports. And if I put the USB dongle in another computer, said computer has access, so the security in this case is not working.

I would use MAC address lists for WLAN since the computers have a WiFi antenna.

Would it be possible to lock a LAN port to a specific computer name? or, any other good tip to solve this issue?

Thank you!

[AlexL1]

Hi  Decaone,

Unfortunately, locking a LAN port to a specific computer name directly is not typically supported, as network security mechanisms generally rely on MAC addresses or authentication protocols like 802.1x. However, you can consider the following options:

Point 1 - Port Security with MAC Addresses - You can assign secure MAC addresses to a port, ensuring that only devices with those MAC addresses can access the network.
        -Sticky MAC addresses can be used to dynamically learn and retain MAC addresses, even during link-down conditions.
       - Navigate to Switching > Monitor > Switches and select your switch. Enter up to 20 MAC addresses to allow on the interface and click Update (Documentation - Switch Ports).

Point 2 - 802.1x Authentication - Implement IEEE 802.1x authentication to control network access. This protocol authenticates devices before allowing them to connect to the network, using credentials rather than MAC addresses.

                   - Use certificate based auth for the clients

                   - Documentation - MS Switch Access Policies (802.1X)

Point 3 - Access Manager - Once it is available on your organization, you can participate in a free trial by opting-in to Access Manager on Early Access page  (Organization > Early Access). 

                      - Documentation - Access Manager - Architecture And Example Use Cases

                      - Documentation - Configure Wireless And Wired Networks To Use Access Manager

If you have any questions, please don't hesitate to contact us.