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3-4 CHAPTER 3: M ANUAL SETUPThe Spanning Tree Priority is the priority assigned to a bridge that is running theSpanning Tree Protocol. It is used for prioritizing the bridges when Spanning Treeis enabled.n To change the Spanning Tree Priority, use the command:set bridge spanning_tree_priority Restricting LAN Access Access to the bridging functions of the 3Com HomeConnect ADSL ModemEthernet can be restricted to certain MAC addresses by using the Access MACAddress feature. When enabled, only packets sourced by or destined forworkstations with MAC addresses in the Access MAC Address Table will bebridged.n To add a MAC address to the Access MAC Address Table, use the command:add bridge access_mac_address Note: the mac address should be entered in the form: xx.xx.xx.xx.xx.xxn To delete a MAC address from the Access MAC Address Table, use thecommand:delete bridge access_mac_address n To enable the use of the Access MAC Address feature, use the command:enable bridge access_mac_addressesn To disable the use of the Access MAC Address feature, use the command:disable bridge access_mac_addressesCanned Filters The 3Com HomeConnect ADSL Modem Ethernet provides sophisticated genericfiltering capabilities. Normally, filters must be created with a text editor, copied tothe unit, and applied to the appropriate interface or bridge port. This process isdescribed in the chapter on Filtering.To simplify this process, several pre-programmed filters installed in the unit. These“canned” filters allow or restrict certain common protocols from beingtransported over a Bridge WAN port. The filters can be applied to a Bridge WANport with a single command.The following canned filters are pre-programmed:n To apply a canned filter to a bridge port, use the command:Table 3-1 Pre-Programmed FiltersFilter Name FunctionNO_IP Do not allow IP packetsNO_IPX Do not allow IPX packetsNO_IP_IPX Do not allow IP or IPX packetsONLY_IP Only allow IP packetsONLY_IPX Only allow IPX packetsONLY_IP_IPX Only allow IP or IPX packetsONLY_PPPOE Only allow PPP-Over-Ethernet packets |
