Hello everyone,
I have an OPNsense with several VLANs in use at my home.
VLAN20: Terminal server
VLAN30: SQL database server
I want the two VLANs to be able to communicate with each other only via certain ports (port 1433 and 53).
All other connections between the two VLANs should be completely blocked.
My question:
How do I create the firewall rules correctly?
Do I have to work with "in" or "out" rules?
Or should I create rules with "in" or "out" direction on both VLAN interfaces?
What is the recommended procedure to allow traffic on both sides only on port 1433 and 53?
Translated with DeepL.com (free version)
I have an OPNsense with several VLANs in use at my home.
VLAN20: Terminal server
VLAN30: SQL database server
I want the two VLANs to be able to communicate with each other only via certain ports (port 1433 and 53).
All other connections between the two VLANs should be completely blocked.
My question:
How do I create the firewall rules correctly?
Do I have to work with "in" or "out" rules?
Or should I create rules with "in" or "out" direction on both VLAN interfaces?
What is the recommended procedure to allow traffic on both sides only on port 1433 and 53?
Translated with DeepL.com (free version)