648 CHAPTER 15: P RIORITIZING NETWORK TRAFFIC9 Repeat steps 7 and 8 to add in the remaining classifiers (in this case, UDPport 2002 and UDP port 2003).10 Click OK to return to the Setup Applications dialog.11 Click OK again to return to the Applications screen where the videoconferencing application is now listed in the Normal list.12 Select the video conferencing application from the Normal list. Select SetPrioritized.13 Click Next to display the next step of the wizard. If the Resource Warningscreen is displayed then you may wish to resolve the resource warningbefore proceeding. Refer to “Resource Warnings” on page 657 for moreinformation.14 When you reach the Configuration Summary step, click Finish to applythe updated configuration to the supported 3Com devices in the map.Restricting Access toSNMPFor security purposes you wish to restrict the use of SNMP in yournetwork to the PCs used by the network managers.1 In the Introduction step, click Next. The wizard will analyze the devices inyour map and display the Configuration Type step as shown inFigure 350.2 Select the Network-wide configuration radio button and click Next todisplay the Servers step as shown in Figure 356.Figure 356 Servers - Restricting Access to SNMP Example