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Chapter 6: Configuring PPP Sessions
Megabit Modem 400F, 500L, 600F, and 700F User Manual 55
Information Description
Connection Name A unique descriptive identifier of the session that also displays in the connection
field.
ATM VPI Virtual Path Identifier (VPI) identifies the virtual path that transports ATM cells in a
virtual Channel. The range of values is 0 to 15.
ATM VCI Virtual Channel Idenifier (VCI) identifies a virtual channel for each session (each
session is a virtual channel). Can be a number from 32 up to a maximum of 253 (on
VPI 0, VCIs 254 and 255 are reserved), with the first 32 (0 through 31) reserved.
Login Name Each session requires a Logon Name that is supplied by the service provider.
Login Password Each session requires a Logon Password that is supplied by the service provider.
Primary DNS IP address of Domain Name Service device that translates names into numeric IP
addresses. This is the device at the service provider that the modem will translate
requests.
Secondary DNS IP address of a secondary Domain Name System device that translates names into
numeric IP addresses.
Address Translation Enables/disables the use of Network Address Translation (NAT) protocol to translate
private IP addresses to public IP addresses assigned to each session.
InBound NAT Default IP address of the designated NAT default user for inbound traffic. When the NAT
engine does not have enough information to do the inbound translation, it forwards
the inbound packet to the NAT default user.
Continuous Retry Enables/disables the Continuous Retry function of the PPP session establishment
process. When Continuous Retry is enabled, the PPP engine continuously retries
establishing the PPP session until one of the following is true:
• The PPP session is established successfully. The session status then goes to the
UP state.
• Authentication fails during the handshaking. The session status then goes to the
LogInErr state.
• The PPP session is disconnected. The session status then goes to the DOWN
state.
Always ON When enabled, the PPP engine establishes/maintains the session even when there
are no users assigned to it. When disabled, the PPP engine will not establish or will
terminate the session when there are no users assigned to it.
Session Enable If enabled, the session is active and is ready to establish the PPP link. If disabled, the
session is not active.
Address Assignment Determines whether the session IP address is assigned by the service provider
(Dynamic) or entered by the user (Fixed).