Question

What of the following criteria can you use to configure a firewall to block or allow traffic?

a) The traffic source address.
b) The traffic source subnet.
c) The traffic source router.
d) The traffic source user.

Answer 1

Firewall configuration can involve using the traffic source address, traffic source subnet, and traffic source user. Configuring firewalls by traffic source router is not typical since routers are conduits rather than originators of network traffic.

Step-by-step explanation:

The criteria you can use to configure a firewall to block or allow traffic include:

• The traffic source address, which refers to the IP address of the system initiating the traffic.
• The traffic source subnet, which is a range of IP addresses within a designated network segment.
• The traffic source router is not typically a direct criterion for firewall configuration since routers direct traffic between different networks and don't originate traffic themselves.
• The traffic source user, where the firewall rules can be configured to identify the user credentials or the account used to send the traffic.

To effectively maintain network security, administrators typically configure firewalls using the source address or user, sometimes in combination with other elements like destination addresses or port numbers.