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6212-A2-GB20-00 May 2004 31
4.4 WAN Setup
Click on WAN Setup from the menu bar to configure the WAN interface for these services:
RFC 1483 Bridged, RFC 1483 Routed, PPPoE, PPPoA, and MER. The following are the common
settings to set up these services.
VPI and VCI
LLC Encapsulation: With LLC encapsulation, a link control header is added to the Ethernet
packet that identifies the protocol type (Ethernet). This allows multiple protocols to be
transmitted over the ATM Virtual Circuit.
VC Multiplexing: With VC Multiplexing, no link control header is needed as the ATM Virtual
Circuit is assumed to be carrying a single protocol.
Enable NAPT: NAPT or Network Address Port Translation is explained further in section 5.7.
This feature is available for RFC 1483 Routed, PPPoE, PPPoA, and MER.