TP-Link TD-8840 - Manual (Page 36)

TD-8840 External ADSL2+ Router User Guide
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Appendix A: FAQ
1. What related parameters are required to acquire ISP when you want to access the
internet by ADSL2+ Router?
1) Dial user: Connection protocol, User name, Password, Value of VPI/VCI, Encapsulation
mode of AAL5 and so on.
2) Static IP user: Connection protocol, WAN IP Address, Subnet Mask, Gateway, Value of
VPI/VCI, Encapsulation mode of AAL5 and so on.
2. About Connection protocol, VCI/VPI, Encapsulation mode of AAL5
1) This product supports the PPP protocol over ATM (PPPoA)、PPP over Ethernet
(PPPoE)、MAC Encapsulation Routing (MER)、IP over ATM (IPoA) and Bridging. You
may be used with any one of the five protocols above. Because the ISP in different areas
supports different protocol, you must choose the protocol which is supported by your
ISP.
2) The VPI is the English abbreviation of the Virtual Path Identifier, the VCI is the English
abbreviation of the Virtual Channel Identifier, the value of VCI/VPI must be compatible
with the value that provided by ISP.
3) Encapsulation mode of AAL5 include: LLC/SNAP and VC_MAX(often using LLC/SNAP).
3. Why the LAN’s and the NIC’s LED both bright, but the configuration interface is
inaccessible?
1) Use the order of ping 192.168.1.1 to check the Accuracy of connection.
2) Check the Accuracy of working NIC.