MySQL 8.0 Reference Manual. Preface and Legal Notices. General Information. Using MySQL as a Document Store. InnoDB ReplicaSet. MySQL NDB Cluster 8.0. Colasoft MAC Scanner will display scan results in the list, including IP address, MAC address, Host Name and Manufacture. It will group all IP addresses according to MAC address if a MAC address is configured with multiple IP addresses. The scanned results can be exported into.txt file for future reference. A bridge is a repeater, with add on the functionality of filtering content by reading the MAC addresses of source and destination. It is also used for interconnecting two LANs working on the same protocol. It has a single input and single output port, thus making it a 2 port device. Types of Bridges. Note: For detailed information about inserting and editing field codes, using switches, setting and changing properties, displaying results vs. Field codes, locking fields, and other common tasks, see Insert, edit, and view fields in Word.
Sep 03, 2013 Since ethernet uses MAC addresses, the sender needs to get the MAC address of the next hop. There is a special protocol ARP (address resolution protocol) that is used for that. Once the sender has retrieved the MAC address of the next hop, he writes that target MAC address into the packet and sends the packet.
A lot of attention is paid to securing the higher layers of the OSI reference model with network-level devices such as firewalls, intrusion protection systems (IPS), and applications such as antivirus and host-based intrusion protection (HIPS).
Layer 2 attacks occur, as you would expect, at Layer 2 of the OSI model. We know that switching operates at Layer 2; therefore, most of these attacks need to be mitigated in the switches you deploy in your network.
Layer 2 attacks are often overlooked when designing a network security solution; it is quite normal to find Layer 2 networks with no protection whatsoever. The availability of dedicated Layer 2 attack tools makes it necessary to defend against possible attack by implementing the features that Cisco offers within IOS Software.
One of the best tools used for testing Layer 2 security is Yersinia that is freely available from http://www.yersinia.net/ and is part of the BackTrack 4 security distribution.
Where Are Mac Addresses Stored For Future Reference
Types of Layer 2 Attacks
This section covers several types of Layer 2 attacks. This section also explains how to mitigate these attacks by implementing the correct control in Cisco IOS.
Following are the main types of Layer 2 attacks:
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Where Are Mac Addresses Stored For Future Reference Online
- CAM overflow
- VLAN hopping
- MAC spoofing
- Private VLAN attacks
- DHCP attacks