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TP-LINK TD-8841 User Manual

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TD-8841
External ADSL2+ Router User Guide
 
 
27
 
Chapter 5. FQA
 
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. 
3)  Whatever the setup of the IP address on your computer (if you close the DHCP function, 
you can't obtain the IP address automatically, must specify the IP address of your 
computer manually). 
4)  Run the winipcfg order in the windows 95/98(run the ipconfig order in the windows 
2000/Vista) to check whether setup the IP address, subnet mask, default gateway by 
DHCP. 
5)  Resume the ADSL2+ Router default configuration if necessary. 
4.  Have completed all configurations, but can’t dial through computer 
1)  Check the indicator of ADSL2+, it should be working normally. 
2)  Check the accuracy of parameter of value of VPI/VCI, Encapsulation mode of AAL5 and 
so on, whether you need to install the software of dial the number, such as Winpoet, 
Enternet. 
3)  This product has the PPP dial procedure inside
,
 so you will not need to use the dial 
software if your protocol is PPPoA or PPPoE, ADSL2+ Router will connect automatically. 
4)  You can check whether your ADSL2+ Router succeeds in connection with PING 
command.