Chapter 7 Interfaces
USG FLEX H Series User’s Guide
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Name Specify a name for the interface. It can use alphanumeric characters, hyphens, and
underscores, and it can be up to 11 characters long.
Port This is the name of the Ethernet interface’s physical port.
Zone Select the zone to which this interface is to belong. You use zones to apply security settings
such as security policy, IPS, remote management, anti-malware, and application patrol.
Make sure to select the correct zone as otherwise traffic may be blocked by a security
policy.
MAC Address This field is read-only. This is the MAC address that the Ethernet interface uses.
Description Enter a description of this interface. You can use alphanumeric and ()+/:=?!*#@$_%-
characters, and it can be up to 60 characters long. Spaces are allowed, but the string
can’t start with a space.
IP Address
Assignment
This option appears when Interface Type is external.
These IP address fields configure an IPv4 IP address on the interface itself. If you change this
IP address on the interface, you may also need to change a related address object for the
network connected to the interface. For example, if you use this screen to change the IP
address of your LAN interface, you should also change the corresponding LAN subnet
address object.
Get
Automatically
This option appears when Interface Type is external. Select this to make the interface a
DHCP client and automatically get the IP address, subnet mask, and gateway address from
a DHCP server.
Use Fixed IP
Address
This option appears when Interface Type is external. Select this if you want to specify the IP
address, subnet mask, and gateway manually.
PPPoE This option appears when Interface Type is external. Select this for a dial-up connection
according to the information from your ISP.
Authentication
Type
Select an authentication protocol for outgoing connection requests.
• Chap: Your Zyxel Device accepts CHAP only.
• PAP: Your Zyxel Device accepts PAP only.
• MSCHAP: Your Zyxel Device accepts MSCHAP only.
• MSCHAP-V2: Your Zyxel Device accepts MSCHAP-V2 only.
User Name Enter the user name give to you by your ISP. You can use up to 30 single-byte characters,
including 0-9a-zA-Z@._-
Password Enter the password associated with the user name. You can use 4 to 63 single-byte
characters, including 0-9a-zA-Z’(){}<>^‘+/:!*#@&=$\.~%,|;-”
Retype Retype the password you entered in the Password field to confirm.
Service Name Enter the service name from your service provider. PPPoE uses a service name to identify
and reach the PPPoE server. You can use up to 30 single-byte characters, including 0-9a-
zA-Z._-
Compression Select On to turn on stac compression. Select Off to turn of stac compression. Stac
compression is data compression technique capable of compressing data by a factor of
about four.
User Idle Timeout Enter the idle timeout in seconds that elapses before the router automatically disconnects
from the PPPoE server.
WAN IP Enter the IP address of the WAN interface through which this connection will send traffic.
Gateway IP Enter the IP address of the router through which this WAN connection will send traffic.
IP Address This option appears when Interface Type is internal. Enter the IP address for this interface.
Subnet Mask This option appears when Interface Type is internal. Enter the subnet mask of this interface in
dot decimal notation. The subnet mask indicates what part of the IP address is the same for
all computers on the network.
DHCP Server
Table 61 Network > Interface > Interface > External/Internal > Add (Ethernet)
LABEL DESCRIPTION
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