HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 77
Example of Potential Security Breaches,
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Static Virtual LANs (VLANs) Special VLAN Types • Switches "A", "B", and "C" are connected by ports belonging to the management VLAN. • Hub "X" is connected to a switch port that belongs to the management VLAN. As a result, the devices connected to Hub X are included in the management VLAN. • Other devices connected to the switches through ports that are not in the management VLAN are excluded from management traffic. Switch A Hub Y Hub X Switch B Server Switch C Management Workstations Links with Ports Belonging to the Management VLAN and other VLANs Links Between Ports on a Hub and Ports belonging to the Management VLAN Links Not Belonging to the Management VLAN Links to Other Devices Figure 2-29. Example of Potential Security Breaches In figure 2-30, Workstation 1 has management access to all three switches through the Management VLAN, while the PCs do not. This is because configuring a switch to recognize a Management VLAN automatically excludes attempts to send management traffic from any other VLAN. 2-49