Nokia T66520, MW1122 Point-to-Point Protocol over Ethernet PPPoE, Payload encapsulations

MW1122 User Manual

Figure 20 Choosing the VCC2 for tunneling example

4.8Point-to-Point Protocol over Ethernet (PPPoE)

Standard PPPoE mode is used when MW1122 is operating as a bridge. PPPoE protocol defines how PPP sessions are mapped into Ethernet packets. When MW1122 operates as a bridge, this protocol is transparent to MW1122.

4.9Payload encapsulations

Both routed and bridged protocols are encapsulated in the ATM link by using either RFC 2684 LLC/SNAP encapsulation or VC multiplexing. MW1122 also supports PPP over AAL5 encapsulation, in which routed protocols are first encapsulated in PPP (RFC 1661). PPP is then encapsulated in ATM according to the IETF PPP over AAL5 using RFC 2364 VC multiplexing or LLC/NLPID encapsulation.

4.10 Access list authorisation

When a wireless LAN is used, it is important to be able to control the clients accessing to MW1122. Therefore, MAC-address-based access control may be used. It prevents all communications to a such client whose MAC address does not appear on the access list. When a new client is brought to the network, its MAC address needs to be added to

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