ZyXEL Communications VWG1312-B10A, User Manual

Page: 91 / 378

Chapter 6 Broadband
VMG1312-B10A User’s Guide
91
Service
Category Select UBR Without PCR or UBR With PCR for applications that are non-time sensitive,
such as e-mail.
Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or data
traffic.
Select Non Realtime VBR (non real-time Variable Bit Rate) for connections that do not
require closely controlled delay and delay variation.
Select Realtime VBR (real-time Variable Bit Rate) for applications with bursty connections
that require closely controlled delay and delay variation.
Peak Cell Rate Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak Cell Rate
(PCR). This is the maximum rate at which the sender can send cells. Type the PCR here.This
field is not available when you select UBR Without PCR.
Sustainable
Cell Rate The Sustainable Cell Rate (SCR) sets the average cell rate (long-term) that can be
transmitted. Type the SCR, which must be less than the PCR. Note that system default is 0
cells/sec.
This field is available only when you select Non Realtime VBR or Realtime VBR.
Maximum Burst
Size Maximum Burst Size (MBS) refers to the maximum number of cells that can be sent at the
peak rate. Type the MBS, which is less than 65535.
This field is available only when you select Non Realtime VBR or Realtime VBR.
PPP
Information This is available only when you select PPPoE or PPPoA in the Mode field.
PPP User Name Enter the user name exactly as your ISP assigned. If assigned a name in the form
user@domain where domain identifies a service name, then enter both components exactly
as given.
PPP Password Enter the password associated with the user name above.
PPP Auto
Connect Select this option if you do not want the connection to time out.
IDLE Timeout This value specifies the time in minutes that elapses before the router automatically
disconnects from the PPPoE server.
This field is not configurable if you select PPP Auto Connect.
PPPoE Service
Name Enter the name of your PPPoE service here.
PPPoE
Passthrough This field is available when you select PPPoE encapsulation.
In addition to the Device’s built-in PPPoE client, you can enable PPPoE pass through to allow
up to ten hosts on the LAN to use PPPoE client software on their computers to connect to the
ISP via the Device. Each host can have a separate account and a public WAN IP address.
PPPoE pass through is an alternative to NAT for application where NAT is not appropriate.
Disable PPPoE pass through if you do not need to allow hosts on the LAN to use PPPoE client
software on their computers to connect to the ISP.
IP Address This is available only when you select IPv4 Only or IPv6/IPv4 DualStack in the IPv6/
IPv4 Mode field.
Obtain an IP
Address
Automatically A static IP address is a fixed IP that your ISP gives you. A dynamic IP address is not fixed;
the ISP assigns you a different one each time you connect to the Internet. Select this if you
have a dynamic IP address.
Static IP
Address Select this option If the ISP assigned a fixed IP address.
IP Address Enter the static IP address provided by your ISP.
Subnet
Mask
Enter the subnet mask provided by your ISP.
Table 8
Routing Mode (continued)
LABEL DESCRIPTION