TP-Link Omada ER8411 VPN Router User Manual
Page 74
USB
USB Modem Configuration
User Guide 65
Connection
Mode
Select the connection mode and configure the parameters according to the
requirements of your ISP.
Connect Automatically:
In this mode, the Internet connection reconnects
automatically anytime it gets disconnected.
Connect Manually:
In this mode, you can click the Connect or Disconnect button to
control the Internet connection manually.
Upload
Bandwidth
Specify the upstream bandwidth of the USB Modem. This value is the upper limit of
the Maximum Upstream Bandwidth on
Transmission > Bandwidth Control
page.
Also, this value determines the bandwidth ratio of USB Modem and WAN ports after
Bandwidth Based Balance Routing is enabled on
Transmission > Load Balancing >
Basic Settings
page.
Download
Bandwidth
Specify the downstream bandwidth of the USB Modem. This value is the upper limit
of the Maximum Downstream Bandwidth on
Transmission > Bandwidth Control
page. Also, this value determines the bandwidth ratio of USB Modem and WAN
ports after Bandwidth Based Balance Routing is enabled on
Transmission > Load
Balancing > Basic Settings
page.
Authentication
Type
Select an authentication type. The default is Auto. Some ISPs require a specific
authentication type, please confirm it with the ISP or keep the default settings.
Auto:
If Auto (default), the router automatically determines the authentication type
used by the ISP.
PAP:
If PAP (Password Authentication Protocol), the router authenticates with the
peer using two handshakes. Select this option if the ISP requires this authentication
type.
CHAP:
If CHAP (Challenge Handshake Authentication Protocol), the router
authenticates with the peer using three handshakes and validates the peer’s identify
periodically. Select this option if the ISP requires this authentication type.
MTU Size
The default MTU (Maximum Transmission Unit) size is 1480 bytes. Do not change it
unless required by the ISP.
Use the Following
DNS Servers
If the ISP provides DNS server IP addresses, select this checkbox and enter the
Primary DNS and Secondary DNS (optional) IP addresses below. Otherwise, the DNS
servers will be assigned dynamically by the ISP.
Primary DNS:
Enter the DNS IP address in dotted-decimal notation provided by the
ISP.
Secondary DNS:
(Optional) Enter another DNS IP address in dotted-decimal notation
provided by the ISP.