PCNSE · Question #59
Refer to Exhibit. A firewall has three PBF rules and a default route with a next hop of 172.20.10.1 that is configured in the default VR. A user named Will has a PC with a 192.168.10.10 IP address…
The correct answer is C. 172.20.20.1. Policy-Based Forwarding (PBF) rules take precedence over traditional routing table lookups, so the HTTPS traffic will be directed to the next hop specified by the matching PBF rule, not the default route.
Question
Refer to Exhibit. A firewall has three PBF rules and a default route with a next hop of 172.20.10.1 that is configured in the default VR. A user named Will has a PC with a 192.168.10.10 IP address. He makes an HTTPS connection to 172.16.10.20. Which is the next hop IP address for the HTTPS traffic from Will's PC?
Exhibit
Options
- A172.20.30.1
- B172.20.40.1
- C172.20.20.1
- D172.20.10.1
How the community answered
(33 responses)- A3% (1)
- B18% (6)
- C73% (24)
- D6% (2)
Why each option
Policy-Based Forwarding (PBF) rules take precedence over traditional routing table lookups, so the HTTPS traffic will be directed to the next hop specified by the matching PBF rule, not the default route.
This next hop would only be used if there was a PBF rule explicitly defining it for this specific traffic, and that rule was matched and applied.
This next hop would only be used if there was a PBF rule explicitly defining it for this specific traffic, and that rule was matched and applied.
Policy-Based Forwarding (PBF) rules are evaluated before the routing table. If a PBF rule is configured to match traffic from source 192.168.10.10, to destination 172.16.10.20, with the HTTPS application, and specifies a next hop of 172.20.20.1, that rule will take precedence, overriding the default route for this specific traffic.
The default route (172.20.10.1) in the default Virtual Router is only used as a last resort if no more specific PBF rule or static route matches the traffic. PBF rules are designed to override standard routing decisions.
Concept tested: Policy-Based Forwarding precedence
Source: https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/policy/policy-based-forwarding
Topics
Community Discussion
No community discussion yet for this question.
