Zoom ADSL X4, Руководство пользователя

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Chapter 2: Advanced Setup Options 17
Permanent VC (Virtual Circuit) Settings
Your service provider will supply the Permanent Virtual Circuit
(PVC) setting for your basic Internet connection. You can define
additional PVCs for services such as telephony or to connect to a
managed Virtual Private Network (VPN) if available in your area.
Consult your service provider.
Enabled?
Enabled by default.
VPI Supplied by your service provider (reference
table appears on page 5).
VCI
Supplied by your service provider (reference
table appears on page 5).
Static IP Address
Most providers use dynamic IP addressing;
only providers using Bridged or Routed IP
Encapsulation can use static IP addresses. If
your provider has given you a static IP
address, enter it here.
Subnet Mask
For static IP address users only (see above):
Enter the subnet mask of the static IP
address given to you by your service provider.
Virtual Circuits No. of virtual circuits that can be set up: 1-7.
Note: You must scroll down to the bottom of the page to reach
the Virtual Circuit field and select a number from the dropdown
list to identify a PVC. The number 0 is reserved for the Basic Setup
settings preconfigured for your provider. Be sure to click Save
Changes and then Write Settings to Flash and Reboot. Once
you have set up multiple PVCs, you can switch between them by
selecting a different number from the Virtual Circuit dropdown
list and clicking Save Changes and Writing Settings to Flash
and Reboot.
ATM
ATM, or Asynchronous Transfer Mode, allows you to change the
way in which your data is sent over the Internet.
ATM Service Category Default is UBR (Unspecified Bit Rate). CBR
(Constant Bit Rate) is optional. You can only
use CBR if you have arranged to do so with
your provider.
Bandwidth
Default is
0
(which equals UBR). Specifying
bandwidth is only possible with CBR.