Reference Guide for the Model RT328 and Model RH348 ISDN Routers
Reducing Unnecessary Calls by Windows 95
One example of when to apply a filter set is reducing unnecessary calls by Windows | ® 95. When | ||
using Windows 95 with a |
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to avoid having ISDN calls placed unnecessarily. Most of these unnecessary calls are caused by |
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PCs on the LAN trying to perform local NetBIOS name resolution, either in response to a user |
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action (browsing the Network Neighborhood or turning a PC on or off, for example) or as periodic |
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background activity. | In some cases, this NetBIOS | activity can be kept local by other means, such |
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as configuring a WINS or DNS server on the local network, using an LMHOSTS file to store addresses of local hosts, or turning off NetBIOS name resolution by DNS. A simpler method is to filter NetBIOS traffic using the filtering capabilities of your Model RT328/RH348 router.
Diagnosing the Situation
If you already know the source or types of packets that are causing the problem, you can proceed directly to the design of the filter. Otherwise, you can use a sniffer or the router’s
LAN Packet Which Triggered Last Call: (Type: IP)
45 00 00 3E 9E 05 00 00 1F 11 CC 9D 8D FB 17 12 CF 45 BC B9 00 89 00 35 00 2A 63 C8 01 85 01 00 00 01 00 00 00 00 00 00 0A 53 41 4E 54 41 43 4C
Figure
Filter Configuration |