ccna 802.1x

ccna 802.1x.By default, VLAN I is the management VLANo Similarly, by default all ports are members of VLAN 1 (VLAN I is the default user VLAN). In addition, VLAN 1 is the default intrinsic VLAN used by "Trunk I. For this reason, Cisco recommends that VLANI not be used in production networks. o All unused ports should be assigned an unusedin the VLAN. In addition, the management VLAN must be reassigned to an unused VLAN (it cannot be a user VLAN, nor an intrinsic VLAN) o170 Chapter 6 Protecting the Local Area Network6.4 Wireless, VoIP, and SAN Security6.4.1 Enterprise Advanced Technology Security Considerations6.4.1.1 Advanced Technology TopologiesWireless LAN technology has been a strong driver for advances in network security. This is because the ease of access afforded by wireless devices has increased the need for fully integrated wireless security solutions.Similarly, the advent of Voice over IP (VoIP) and all the associated devices and technologies (IP telephony communications) has led to the development of security. Who wants their phone calls to be intercepted by hackers? It is necessary to describe the drivers behind VoIP implementations, the components needed for VoIP networks, and the issues associated with VoIP services. It is also only natural to explore the development of the impact of implementing security measures in IP networks that carry voice.Storage area networks (SANs) offer solutions to improve network costs and server downtime. SAN security is essential given that the purpose of network security is to protect data (both voice and video), which is now often actually stored in SANs.6.4.1.2 Introduction to wireless security