Packet filters are not susceptible to IP spoofing.
Packet filters provide an initial degree of security at the data-link and network layer.
Packet filters perform almost all the tasks of a high-end firewall at a fraction of the cost
Packet filters represent a complete firewall solution.
aa accounting connection start-stop group radius
aaa accounting connection start-stop group tacacs+
aaa accounting exec start-stop group radius
aaa accounting exec start-stop group tacacs+
authorizes connections based on a list of IP addresses configured in an ACL on a Cisco ACS server
allows the device to establish only a single connection with the AAA-enabled server
allows a Cisco ACS server to minimize delay by establishing persistent TCP connections [adef]
allows a new TCP session to be established for every authorization request
Keep a secure copy of router operating system images.
Reduce the number of ports that can be used to access the router.
Configure the router with the maximum amount of memory possible.
Disable default router services that are not necessary.
It allows for the transmission of keys directly across a network.
The purpose of IKE Phase 2 is to negotiate a security association between two IKE peers.
IKE Phase 1 can be implemented in three different modes: main, aggressive, or qu
It uses UDP port 500 to exchange IKE information between the security gateways.
Traffic that is sent from the LAN and the Internet to the DMZ is considered inbound.
Traffic that is sent from the DMZ and the Internet to the LAN is considered outbound.
Traffic that is sent from the LAN to the DMZ is considered is considered inbound.
Traffic that is sent from the DMZ and the LAN to the Internet is considered outbound
The code was encrypted with both a private and public key
The code contains no errors.
The code has not been modified since it left the software publisher.
The code contains no viruses.
The code is authentic and is actually sourced by the publisher.
uses static packet filtering techniques
uses complex ACLs which can be difficult to configure
prevents Layer 7 attacks
analyzes traffic at Layers 3, 4 and 5 of the OSI model
uses connection information maintained in a state table
consolidates duplicate event data to minimize the volume of gathered data
Microsoft port scanning tool designed for Windows
uses penetration testing to determine most network vulnerabilities
can be implemented as software or as a service
provides real-time reporting for short-term security event analysis
examines logs and events from systems and applications to detect security threats [adef]
public Internet to inside
DMZ to inside
public Internet to DMZ
inside to DMZ [adef]
reset TCP connection
reset UDP connection
選擇要在Apple App Store上查看的Topgrade應用程序。