Draytek Vigor C410 Series User Manual page 41

Available settings are explained as follows:
Item
Advanced
Mode:ON/OFF
Index
Profile Name
Enabled
Physical Type
IP Version
Enable SIM1
USB Mode
USB/SIM1 PIN Code
Enable
Username/Password
Authentication
Description
Click to show or hide the advanced settings (WAN MAC Address) for
the WAN interface.
Displays current WAN interface.
Displays the name of the profile.
Switch the toggle to enable or disable the access mode.
General Setup
Displays the physical type used by this interface.
Set the protocol (IPv4 or IPv6 or both) that this WAN interface used.
USB/LTE Settings
Click to enable or disable the SIM settings.
DHCP – Dynamic Host Configuration Protocol is used to establish a
connection.
PPP - Point-to-Point Protocol is used to establish a connection.
PIN code of the SIM card in the modem. The maximum length of the
PIN is 15 characters.
Switch the toggle to enable or disable the function.
Authentication – Select the protocol used for PPP authentication.
PAP only - Only PAP (Password Authentication Protocol) is used.

PAP or CHAP - Both PAP and CHAP (Challenge-Handshake

Authentication Protocol) can be used for PPP authentication.
Router negotiates with the PPTP or L2TP server to determine
which protocol to use.
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