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156-215.80 · Question #159

Joey is using the computer with IP address 192.168.20.13. He wants to access web page many rules on Check Point Firewall are required for this connection?

The correct answer is D. Only one rule, because Check Point firewall is using Stateful Inspection technology. Check Point firewalls use Stateful Inspection technology, which tracks connection state and automatically permits return traffic, so only one outbound rule is needed for a web browsing session.

Introduction to Check Point Technology

Question

Joey is using the computer with IP address 192.168.20.13. He wants to access web page many rules on Check Point Firewall are required for this connection?

Options

  • ATwo rules ?first one for the HTTP traffic and second one for DNS traffic.
  • BOnly one rule, because Check Point firewall is a Packet Filtering firewall
  • CTwo rules ?one for outgoing request and second one for incoming replay.
  • DOnly one rule, because Check Point firewall is using Stateful Inspection technology.

How the community answered

(54 responses)
  • A
    4% (2)
  • B
    7% (4)
  • C
    2% (1)
  • D
    87% (47)

Why each option

Check Point firewalls use Stateful Inspection technology, which tracks connection state and automatically permits return traffic, so only one outbound rule is needed for a web browsing session.

ATwo rules ?first one for the HTTP traffic and second one for DNS traffic.

Separate rules for HTTP and DNS are not required because Stateful Inspection handles return traffic automatically - this answer incorrectly applies a stateless, packet-filtering-style rule logic.

BOnly one rule, because Check Point firewall is a Packet Filtering firewall

Packet Filtering firewalls are stateless and would require rules for both outbound and inbound directions - Check Point uses the more advanced Stateful Inspection technology, not simple packet filtering.

CTwo rules ?one for outgoing request and second one for incoming replay.

Stateful Inspection eliminates the need for a separate inbound return-traffic rule by tracking the connection in a state table, so only one outbound rule is needed to permit the complete exchange.

DOnly one rule, because Check Point firewall is using Stateful Inspection technology.Correct

Check Point's Stateful Inspection engine maintains a state table of all active connections. When an outbound HTTP request is permitted by a single rule, the firewall records the session state and automatically allows the corresponding return traffic without requiring a separate rule, making one rule sufficient for the entire exchange.

Concept tested: Check Point Stateful Inspection single-rule connection handling

Source: https://sc1.checkpoint.com/documents/R81.20/WebAdminGuides/EN/CP_R81.20_SecurityManagement_AdminGuide/Content/Topics-SMAG/Stateful-Inspection-Overview.htm

Topics

#stateful inspection#firewall rules#connection tracking#packet filtering

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