#Cisco mac address security how to#
#Cisco mac address security trial#
#Cisco mac address security password#

An attacker could collect traffic that contains all user data and private information, passwords or configuration information about the machines on the network.Īll switch ports or interfaces should have switch port security enabled before the switch is deployed into the real world use. In this case every system connected to the switch can potentially view all network traffic passing through the switch to all systems connected to the switch. On the switch that is not protected we can expect that attacker will easily perform a MAC address flooding attack in which a switch can be configured to act like a hub.

Switch Security Attacks – Layer 2 SecurityĪ switch that does not provide port security allows an attacker to attach a system to an unused, enabled port and to perform information gathering or attacks.

VoIP Security – Main Targets of VoIP Attacks.

Attack on SIP protocol – VoIP Vulnerability.

Vishing and Toll Fraud – VoIP Vulnerability.

Implement Auxiliary VLANs to make VoIP Networks secure.

Protecting a VoIP Network with Security Appliances.

DoS and DDoS – Denial of Service attacks.

DDoS – Distributed Denial of Service attack.

DoS Methods – ICMP and SYN flood, Teardrop and Low-rate DoS attacks.

DoS Methods – PDoS, Permanent DoS attacks.

Unidirectional communication filter between two VLANs.

Source-based routing in IPv4 and IPv6 networks.

What is the difference between tunnel | transport mode in IPsec.

#Cisco mac address security how to#

How to Enable Dot1x authentication for wired clients.How to Enable Dot1x – more complex setup for wired network.Mitigate DoS Attack using TCP Intercept on Cisco Router.How Encryption of Network Traffic Works?.QKD – How Quantum Cryptography Key Distribution Works.Port Security Check out some more security articles: It will be configuration of both static and dynamic port security. Also we will show you how to configure port security on the Cisco IOS. They have the largest question bank, with adaptive tests and advanced reporting which tells you exactly when you are ready to pass the real exam.Get rid of the MAC flooding attacks on your switch and all kinds of other attacks that will mitigate you network security by implementing switch port security.Īll about the issues to consider when configuring port security on a switch will be written here.

#Cisco mac address security trial#

I recommend this as your primary study source to learn all the topics on the exam.Īnd click here for a free trial of AlphaPrep premium practice tests when youre ready to test your knowledge. These are the best CCNA training resources online:Ĭlick Here to get the Cisco CCNA Gold Bootcamp, the most comprehensive and highest rated CCNA course online with a 4.8 star rating from over 30,000 public reviews. Our Recommended Premium CCNA Training Resources

#Cisco mac address security password#

The enable secret password is used if both are configured. Global command that sets the switch’s enable password. The password is stored in a hashed format, meaning that someone reading the configuration file will not see the correct text password. Global command that places the user in vty configuration mode.Ĭonsole or vty configuration mode command that tells the switch to ask for a password for a console user or Telnet user, respectively.Ĭonsole or vty configuration mode command that sets the password required. Global command that places the user in console configuration mode. Global configuration command that tells the switch what to do if an inappropriate MAC address tries to access the network through a secure switch port. Interface configuration mode command that sets the duplex mode for the interface. Puts the user into interface configuration mode for that interface. Global command that sets the default gateway so that the management interface can be reached from a remote network. Interface configuration mode command that sets the IP address for in-band switch management. Moves the user to interface configuration mode for a VLAN interface. The following table lists some of the most important basic Cisco Catalyst switch configuration commands.