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Page 106 / 126 Scroll up to view Page 101 - 105
030-300613 Rev A
106
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
14.4.4
VCs
The following screen will appear if you select
Advanced > WAN > VCs
from the main menu. A VC (Virtual
Connection) identifies a connection through the ISP’s ATM network to your ISP. This screen is an advanced screen.
Modifying parameters identified on this screen can cause severe disruption of your service. It is recommended that
nothing be changed on this screen unless explicitly instructed by your ISP.
Status
Click this drop-down menu to enable or disable your VC (Virtual Connection).
“Enable” must be displayed to edit VC settings.
VPI
Displays the VPI (Virtual Path Indicator) value for a particular VC, which is defined
by your ISP.
VCI
Displays the VCI (Virtual Channel Indicator) value for a particular VC, which is
defined by your ISP.
Protocol
Note: The configuration
specified by your ISP will
determine which
Protocols are available to
you.
Displays the Protocol for each VC, which is specified by your ISP.
•
PPPoA: Point to Point Protocol over ATM (Asynchronous Transfer Mode).
•
PPPoE: Point to Point Protocol over Ethernet.
•
Bridge: Bridge Protocol.
Edit
Click
Edit
button to edit the VC using the
VC 1 Configuration
window. Refer to
section 14.4.4.1, “VC 1 Configuration.”
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030-300613 Rev A
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August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
14.4.4.1
VC 1 Configuration
The following screen will appear if you click the
Edit
button from the
VCs
screen (
Advanced > WAN > VCs >
Edit
). This screen allows you to edit your VCs. If you change the settings in this screen, click
set VC
and then
OK
.
If you click
Cancel
, the screen will return to its previous settings.
VC 1 Configuration
VPI
Displays the VPI (Virtual Path Indicator) value for a particular VC, which is defined
by your ISP.
VCI
Displays the VCI (Virtual Channel Indicator) value for a particular VC, which is
defined by your ISP.
PCR
Displays the Peak Cell Rate (PCR): The maximum rate at which cells can be
transmitted across a virtual circuit, specified in cells per second and defined by the
interval between the transmission of the last bit of one cell and the first bit of the
next. This value is a percentage of the current data rate; for example:
•
100 allows this VC to use 100% of the available bandwidth.
•
80 allows this VC to use 80% of the available bandwidth.
By default,
PCR
is 100.
QoS
Click this drop-down menu to select the Quality of Service (QoS). The selections
available are determined by your ISP.
Protocol
Note: The configuration
specified by your ISP will
determine which
Protocols are available to
you.
Click this drop-down menu to select the Protocol to be used. The selections
available are determined by your ISP.
•
PPPoA: Point to Point Protocol over ATM (Asynchronous Transfer Mode)
•
PPPoE: Point to Point Protocol over Ethernet
•
Bridge: Bridge Protocol
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User Guide
VersaLink Wireless Gateway (Model 7500)
Status
Displays the status of your VC (Virtual Connection). This field must display
“Enable” in order to allow edits to the VC settings.
PPPoE Settings
DNS Primary
Displays the DNS Primary address for resolving machine names, which is provided
by your ISP.
DNS Secondary
Displays the DNS Secondary address for resolving machine names, which is
provided by your ISP.
MRU/MTU Negotiation
Click this check box to enable or disable MRU/MTU Negotiation. If enabled, the
Maximum Received Unit (MRU) would enforce MRU negotiations. By default,
MRU/MTU Negotiation
is disabled (unchecked). Note: Enable this option only at
your ISP’s request.
Size
Displays the size of the MRU.
LCP Echo Disable
Click this check box to enable or disable LCP Echo Disable. If checked, this option
will disable the Gateway LCP Echo transmissions. By default,
LCP Echo Disable
is
disabled (checked).
LCP Echo Failures
Displays the number of continuous LCP echo non-responses received before the
PPP session is terminated. This number must be between 1 and 30 inclusive.
LCP Echo Duration
Displays the interval between LCP Echo transmissions with responses. This number
must be between 5 and 300 seconds inclusive and greater or equal to
LCP Echo
Retry Duration
.
LCP Echo Retry Duration
Displays the interval between LCP Echo after no response. This number must be
between 5 and 300 seconds inclusive.
Tunneling
Click the option to enable or disable the Tunneling feature. If Enabled, this option
allows PPP traffic to be bridged to the WAN.
By default,
Tunneling
is enabled.
Note: Tunneling is available in PPPoE mode only.
Proxy ARP
Click the option to enable or disable the Proxy ARP feature. When enabled, the
Gateway replies to WAN ARPs for Public LAN Addresses. By default,
Proxy ARP
is disabled.
PPPoA Settings
DNS Primary
Displays the DNS Primary address for resolving machine names, which is provided
by your ISP.
DNS Secondary
Displays the DNS Secondary address for resolving machine names, which is
provided by your ISP.
MRU/MTU Negotiation
Click this check box to enable or disable MRU/MTU Negotiation. If enabled, the
Maximum Received Unit (MRU) would enforce MRU negotiations. By default,
MRU/MTU Negotiation
is disabled (unchecked). Note: Enable this option only at
your ISP’s request.
Size
Displays the size of the MRU.
LCP Echo Disable
Click this check box to enable or disable LCP Echo Disable. If checked, this option
will disable the Gateway LCP Echo transmissions. By default,
LCP Echo Disable
is
disabled (checked).
LCP Echo Failures
Displays the number of continuous LCP echo non-responses received before the
PPP session is terminated. This number must be between 1 and 30 inclusive.
LCP Echo Duration
Displays the interval between LCP Echo transmissions with responses. This number
must be between 5 and 300 seconds inclusive and greater or equal to
LCP Echo
Retry Duration
.
LCP Echo Retry Duration
Displays the interval between LCP Echo after no response. This number must be
between 5 and 300 seconds inclusive.
Bridge Settings
Mode
Click this drop-down menu to select the Bride Setting for the VC: Bridge or Routed
Bridge.
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VersaLink Wireless Gateway (Model 7500)
Routed Bridge Settings
Mode
Click this drop-down menu to select the Bride Setting for the VC: Bridge or Routed
Bridge.
DHCP Client
Click the option to enable or disable the DHCP Client feature. Enabling this feature
will obtain the IP address automatically. Disabling this feature will use the static IP
address that you type in the provided field
IP Address
Displays the IP network address that your Gateway is on.
Subnet Mask
Displays the subnet mask, which determines if an IP address belongs to your local
network.
Gateway
Displays the Gateway’s IP gateway address.
DNS Primary
Displays DNS Primary address, which is provided by your ISP.
DNS Secondary
Displays DNS Secondary address, which is provided by your ISP.
Proxy ARP
Click the option to enable or disable the Proxy ARP feature.
14.4.5
WAN Detection
The following screen will appear if you select
Advanced > WAN > WAN Detection
from the main menu. If you
click the
detect configuration
button, your Gateway will initiate automatic detection of the WAN protocol per
VPI/VCI settings. The process detects DHCP-Enabled, Routed Bridge, or PPPoE Protocols. The process is as
follows:
1.
The Gateway tries to detect the protocol to use for connecting to your ISP.
2.
The Gateway waits indefinitely for the DSL/Ethernet hardware link to come up.
3.
The Gateway tries the PPPoE and Routed IP protocols.
The Gateway will try up to two times until a protocol is detected or until cancelled. You will be unable to access any
other Gateway screens while the detection is in progress. Once a protocol is detected, automatic detection is not run
again.
Page 110 / 126
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User Guide
VersaLink Wireless Gateway (Model 7500)
Clicking the
detect configuration
button will cause the Gateway to restart.
14.4.6
QoS
The following screen will appear if you select
Advanced > WAN > QoS
from the main menu. The QoS (Quality of
Service) feature helps ensure data integrity in high-speed transmissions. QoS provides the capability to partition
network traffic into multiple priority levels or classes of service. After packet classification, other QoS features can
be utilized to assign the appropriate traffic handling policies, including congestion management, bandwidth
allocation, and delay bounds for each traffic class. Modifying parameters identified on this screen can cause severe
disruption of your service. It is recommended that nothing be changed on these screens unless explicitly instructed
by your ISP. If you change the settings in this screen, click
apply
and then
OK
. If you click
reset
or
Cancel
, the
screen will return to its previous settings.
NOTE:
If your Gateway’s Ethernet VersaPort is configured for “WAN Uplink Port” instead of “LAN Ethernet
Port,” this feature will not be available. Refer to section 14.4.3, “VersaPort.”

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