What is one limitation of a stateful firewall?

IT Exam Items RepositoryCategory: CCNA SecurityWhat is one limitation of a stateful firewall?

What is one limitation of a stateful firewall?

  • weak user authentication
  • cannot filter unnecessary traffic
  • not as effective with UDP- or ICMP-based traffic
  • poor log information

Explanation: Limitations of stateful firewalls include the following:
Stateful firewalls cannot prevent application layer attacks.
Protocols such as UDP and ICMP are not stateful and do not generate information needed for a state table.
An entire range of ports must sometimes be opened in order to support specific applications that open multiple ports.
Stateful firewalls lack user authentication.

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