Operation Manual

Cerberus ADSL2+ Lite (P 6311-07)

Set your Internet Connection

Glossary:

• Multiplexing - Two conventions identify what protocols a virtual circuit (VC) is carrying.

Be sure to use the multiplexing method your ISP requires:

VC-Based Multiplexing – In VC-based multiplexing, by prior mutual agreement, each

protocol is assigned to a specific virtual circuit. For example, VC1 carries IP, etc. VC-

based multiplexing may be dominant in environments where dynamic creation of large

numbers of ATM VCs is fast and economical.

LLC-Based Multiplexing – In LLC-based multiplexing, one VC carries multiple protocols

with protocol-identifying information contained in each packet header. While this method

requires extra bandwidth and processing overhead, this method may be advantageous if

it is not practical to have a separate VC for each carried protocol; for example, if charging

heavily depends on the number of simultaneous VCs.

• VPI and VCI - Be sure to use the Virtual Path Identifier (VPI) and Virtual Channel

Identifier (VCI) numbers assigned to you. The valid range for the VPI is 0 to 255. The

valid range for the VCI is 32 to 65535. 0 to 31 is reserved for local management of ATM

traffic.

• PPPoA – Point-to-Point Protocol over ATM Adaptation Layer 5 (AAL5) (PPPoA) provides

access control and billing functionality in a manner similar to dial-up services using PPP.

The router encapsulates the PPP session based on RFC1483 and sends it through ATM

PVC to the ISP’s DSLAM.

• PPPoE – Point-to-Point Protocol over Ethernet provides access control and billing

functionality in a manner similar to dial-up services using PPP. The router bridges a PPP

session over Ethernet (PPP over Ethernet, RFC 2516) from your computer to an ATM

Permanent Virtual Circuit (PVC) that connects to the ADSL Access Concentrator, where

the PPP session terminates. Single PVC can support any number of PPP sessions from

your LAN.

Select the Internet connection type you use to connect to your ISP. The following screen will

vary depending on which connection type you chose.

Click on BACK to return to the previous screen, on NEXT to continue, or on EXIT to exit the

wizard.