Netopia R6100 Reference Manual page 63

Circuit Enabled allows you to enable or disable the circuit, using the Tab key. The default is enabled.
Circuit VPI allows you to specify the Virtual Path Identifier (VPI) value for the circuit. The default VPI value
for ADSL is zero (0).
Circuit VCI allows you to specify the Virtual Channel Identifier (VCI) value for the circuit. The default VCI
value for circuits on ADSL is 35.
Use Connection Profile and Use Default Profile for Circuit are visible when there is more than one enabled
circuit. Choosing Use Connection Profile presents a pop-up menu that lists all of your enabled Connection
Profiles. Choosing a profile from the list statically binds the circuit to the selected profile. Choosing Use
Default Profile for Circuit statically binds the circuit to the Default Profile. When the circuit is bound to a
Connection Profile, Use Connection Profile displays the name of the profile; when the circuit is associated
with the Default Profile, Use Connection Profile displays Default Profile.
When more than one circuit is enabled, you must explicitly statically bind each circuit to the Connection
Profile to be used on the circuit, or to the Default Profile. To do this you use Use Connection Profile or Use
Default Profile for Circuit.
Note: With multiple VCs you must explicitly statically bind the second (and all subsequent) VCs to a profile. The
first VC will automatically statically bind according to pre-defined dynamic binding rules when you add the
second VC. It will revert back to dynamic binding if the number of VCs is reduced to one; for example, by
deleting previously defined VCs.
When the link comes up the router binds the VC dynamically to the first suitable Connection Profile or to the
Default Profile if there is no Connection Profile configured.
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If you factory default the router, the VC binds to the Default Profile.
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If you delete a Connection Profile that is statically bound to a VC, the VC binding is set back to the Default
Profile. If there is only one VC defined, the VC dynamically binds to the first suitable profile or to the Default
Profile. If there are multiple VCs defined, it binds to the Default Profile.
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If you add a second VC, it is initialized to the Default Profile, and the menu screens display the VC
Connection Profile-related items, allowing you to bind to a specific Connection Profile instead of the Default
Profile. In addition, the router statically binds the first VC according to the rules used to select a profile for
dynamic binding. At this point, each profile uses static binding when the link is brought up.
If there are no VCs when you add a VC -- for example, if you deleted all your previous VCs and started adding
them again -- dynamic binding will occur when the link comes up. If you delete a VC, leaving only one VC, that VC
resumes dynamically binding again.
Press Escape to return to the ADSL Line Configuration screen.
Select Data Link Encapsulation and press Return. The pop-up menu will offer you the choice of PPP or
RFC1483. Your selection depends on which type your ISP uses. The default is RFC1483.
If you selected PPP as your Data Link Encapsulation method, the PPP Mode pop-up menu offers the
choice of VC Multiplexed (the default) or LLC SNAP.
If you selected RFC1483 as your Data Link Encapsulation method, the RFC1483 Mode pop-up menu
becomes visible. This allows you to choose between Bridged 1483 and Routed 1483, depending on
WAN and System Configuration 8-5