What is Cisco CBAC?

CBAC (Context Based Access Control) is a firewall for Cisco IOS routers that offers some more features than a simple access-list. CBAC is able to inspect up to layer 7 of the OSI model and can dynamically create rules to allow return traffic.

What is a feature of a Cisco IOS Zone-Based Policy firewall?

Cisco IOS XE supports Virtual Fragmentation Reassembly (VFR) on zone-based firewall configuration. When you enable the firewall on an interface by adding the interface to a zone, VFR is configured automatically on the same interface.

What is a functional difference between a Cisco ASA and Cisco IOS router with Zone-Based policy firewall?

The Cisco ASA denies all traffic by default, whereas the Cisco IOS router with Zone-Based Policy Firewall starts out by allowing all traffic, even on untrusted interfaces.

Which is not the CBAC feature?

CBAC doesn’t support Websense, reflexive access lists, or TCP Intercept.

Which are the technologies Cbac can support?

It can be used for intranets, extranets and internets. CBAC can be configured to permit specified TCP and UDP traffic through a firewall only when the connection is initiated from within the network needing protection. (In other words, CBAC can inspect traffic for sessions that originate from the external network.)

What is a functional difference between a Cisco ASA and a Cisco IOS router with Zone Based Policy firewall?

What are two benefits of using a Zpf rather than a classic firewall?

What are two benefits of using a ZPF rather than a Classic Firewall? (Choose two.) – ZPF allows interfaces to be placed into zones for IP inspection. – The ZPF is not dependent on ACLs. – Multiple inspection actions are used with ZPF.

Is zone-based firewall stateful?

Zone-based firewall is an advanced method of stateful firewall. In stateful firewall, an entry containing source IP address, destination IP address, source Port number and destination Port number, is maintained for the traffic generated by the trusted (private) network in the stateful database.

Which are the following protocols we can use to manage a CBAC firewall?

Supported Protocols for CBAC

  • All TCP and UDP sessions, including FTP, HTTP with Java, SMTP, TFTP, and the UNIX R commands, such as rexec, rlogin, and rsh.
  • ICMP sessions, including echo request, echo reply, destination unreachable, time exceeded, timestamp request, and timestamp reply ICMP messages.