D-Link DGS-3620-28TC-SI Product Manual - Page 379

xStack® DGS-3620 Series Managed Switch Web UI Reference Guide NetBIOS Filtering Settings NetBIOS is an application programming interface, providing a set of functions that applications use to communicate across networks. NetBEUI, the NetBIOS Enhanced User Interface, was created as a data-link-layer frame structure for NetBIOS. A simple mechanism to carry NetBIOS traffic, NetBEUI has been the protocol of choice for small MSDOS- and Windows-based workgroups. NetBIOS no longer lives strictly inside of the NetBEUI protocol. Microsoft worked to create the international standards described in RFC 1001 and RFC 1002, NetBIOS over TCP/IP (NBT). If the network administrator wants to block the network communication on more than two computers which use NETBUEI protocol, it can use NETBIOS filtering to filter these kinds of packets. If the user enables the NETBIOS filter, the switch will create one access profile and three access rules automatically. If the user enables the extensive NETBIOS filter, the switch will create one more access profile and one more access rule. To view this window, click Security > NetBIOS Filtering Settings as shown below: Figure 8-60 NetBIOS Filtering Settings window The fields that can be configured are described below: Parameter Description NetBIOS Filtering Ports Select the appropriate port to include in the NetBIOS filtering configuration. Unit Select the unit you want to configure. Ports Tick the appropriate ports that will be included in the NetBIOS filtering configuration. Extensive NetBIOS Filtering Ports Select the appropriate port to include in the Extensive NetBIOS filtering configuration. Extensive NetBIOS is NetBIOS over 802.3. The Switch will deny the NetBIOS over 802.3 frame on these enabled ports. Unit Select the unit you want to configure. Ports Tick the appropriate ports that will be included in the Extensive NetBIOS filtering configuration. Click the Select All button to select all ports for configuration. Click the Clear All button to remove all the ports. Click the Apply button to accept the changes made for each individual section. 369