Hi list users,



I am not a network administrator and know only a little bit about the 

topic. I need to set up a switch in my lab, so that I can have a wifi 

access point and an SL7 desktop computer on the same network, as I need 

to be able to connect to the pc using a tablet. My administrator does 

not allow switches to be on the network, so I need two network adapters 

on my desktop, one for internet, and on on the local switch.



I tried a nominal setup at home first, with my home wifi access point, 

router/switch and using only a single adapter. I managed to open the 

required ports using firewalld, and my setup works great at home, where 

I can connect a tablet over wifi and access my desktop as I need. The 

only problem I see there is that the ports I opened are open to the 

world, but since that was temporary for testing, it was fine. They are 

now closed.



I bought a usb ethernet adapter, which shows up as a network interface 

on my lab computer. I now need to configure my lab computer as follows. 

I would like the onboard network adapter to be the default (used for web 

browsing etc), and use default settings (public zone, etc). And I would 

like the new usb network adapter to have the required ports open, so 

that I can access that computer over wifi with my local switch.



As I said, I have used firewall-cmd to open and close ports. I know a 

little bit, but not enough to accomplish what I describe above.



Can anyone help with this? Just let me know if more information is needed.



Thanks,

Chris