ZyXEL VMG4927-B50A User Guide - Page 75
Broadband, VMG4927-B50A / VMG9827-B50A User's Guide, Table 11, Network Setting >
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Chapter 6 Broadband Table 11 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode) (continued) LABEL DESCRIPTION Encapsulation Select the method of encapsulation used by your ISP from the drop-down list box. This option is available only when you select Routing in the Mode field. IPv4/IPv6 Mode The choices depend on the connection type you selected. If your connection type is ADSL/VDSL over PTM, the choices are PPPoE and IPoE. If your connection type is ADSL over ATM, the choices are PPPoE, PPPoA, IPoE and IPoA. If your connection type is Ethernet, the choices are PPPoE and IPoE. Select IPv4 Only if you want the VMG to run IPv4 only. Select IPv4 IPv6 DualStack to allow the VMG to run IPv4 and IPv6 at the same time. Select IPv6 Only if you want the VMG to run IPv6 only. ATM PVC Configuration (These fields appear when the Type is set to ADSL over ATM.) VPI The valid range for the VPI is 0 to 255. Enter the VPI assigned to you. VCI The valid range for the VCI is 32 to 65535 (0 to 31 is reserved for local management of ATM traffic). Enter the VCI assigned to you. Encapsulation Mode Select the method of multiplexing used by your ISP from the drop-down list box. Choices are: • LLC/SNAP-BRIDGING: In LCC encapsulation, bridged PDUs are encapsulated by identifying the type of the bridged media in the SNAP header. This is available only when you select IPoE or PPPoE in the Select DSL Link Type field. • VC/MUX: In VC multiplexing, each protocol is carried on a single ATM virtual circuit (VC). To transport multiple protocols, the VMG needs separate VCs. There is a binding between a VC and the type of the network protocol carried on the VC. This reduces payload overhead since there is no need to carry protocol information in each Protocol Data Unit (PDU) payload. • LLC/ENCAPSULATION: More than one protocol can be carried over the same VC. This is available only when you select PPPoA in the Encapsulation field. • LLC/SNAP-ROUTING: In LCC encapsulation, an IEEE 802.2 Logical Link Control (LLC) header is prefixed to each routed PDU to identify the PDUs. The LCC header can be followed by an IEEE 802.1a SubNetwork Attachment Point (SNAP) header. This is available only when you select IPoA in the Encapsulation field. Service Category Select UBR Without PCR for applications that are non-time sensitive, such as email. Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or data traffic. Select Non Realtime VBR (non real-time Variable Bit Rate) for connections that do not require closely controlled delay and delay variation. Select Realtime VBR (real-time Variable Bit Rate) for applications with bursty connections that require closely controlled delay and delay variation. PPP Information (This is available only when you select PPPoE or PPPoA in the Mode field.) PPP User Name Enter the user name exactly as your ISP assigned. If assigned a name in the form user@domain where domain identifies a service name, then enter both components exactly as given. PPP Password Enter the password associated with the user name above. Select password unmask to show your entered password in plain text. PPP Connection Select when to have the VMG establish the PPP connection. Trigger Auto Connect - select this to not let the connection time out. Idle Timeout On Demand - select this to automatically bring up the connection when the VMG receives packets destined for the Internet. This value specifies the time in minutes that elapses before the router automatically disconnects from the PPPoE server. This field is not available if you select Auto Connect in the PPP Connection Trigger field. VMG4927-B50A / VMG9827-B50A User's Guide 75