Chapter 10 Interfaces
ZyWALL USG Series User’s Guide
360
Interface Type Select one of the following option depending on the type of network to which the Zyxel
Device is connected or if you want to additionally manually configure some related
settings.
internal is for connecting to a local network. Other corresponding configuration options:
DHCP server and DHCP relay. The Zyxel Device automatically adds default SNAT settings for
traffic flowing from this interface to an external interface.
external is for connecting to an external network (like the Internet). The Zyxel Device
automatically adds this interface to the default WAN trunk.
For general, the rest of the screen’s options do not automatically adjust and you must
manually configure a policy route to add routing and SNAT settings for the interface.
Interface Name This field is read-only if you are editing an existing VLAN interface. Enter the number of the
VLAN interface. You can use a number from 0~4094. For example, use vlan0, vlan8, and so
on. The total number of VLANs you can configure on the Zyxel Device depends on the
model.
Zone Select the zone to which the VLAN interface belongs.
Base Port Select the Ethernet interface on which the VLAN interface runs.
VLAN ID Enter the VLAN ID. This 12-bit number uniquely identifies each VLAN. Allowed values are 1 -
4094. (0 and 4095 are reserved.)
Priority Code This is a 3-bit field within a 802.1Q VLAN tag that’s used to prioritize associated outgoing
VLAN traffic. “0” is the lowest priority level and “7” is the highest. See Table 244 on page 681.
The setting configured in Configuration > BWM overwrites the priority setting here.
Description Enter a description of this interface. You can use alphanumeric and
()+/:=?!*#@$_%-
characters, and it can be up to 60 characters long. Spaces are allowed, but the string
can’t start with a space.
IP Address
Assignment
Get
Automatically
Select this if this interface is a DHCP client. In this case, the DHCP server configures the IP
address, subnet mask, and gateway automatically.
You should not select this if the interface is assigned to a VRRP group.
DHCP Option 60 DHCP Option 60 is used by the Zyxel Device for identification to the DHCP server using the
VCI (Vendor Class Identifier) on the DHCP server. The Zyxel Device adds it in the initial DHCP
discovery message that a DHCP client broadcasts in search of an IP address. The DHCP
server can assign different IP addresses or options to clients with the specific VCI or reject
the request from clients without the specific VCI.
Type a string using up to 64 of these characters [a-zA-Z0-9!\"#$%&\'()*+,-./
:;<=>?@\[\\\]^_`{|}~] to identify this Zyxel Device to the DHCP server. For example, Zyxel-
TW.
Use Fixed IP
Address
Select this if you want to specify the IP address, subnet mask, and gateway manually.
IP Address This field is enabled if you select Use Fixed IP Address.
Enter the IP address for this interface.
Subnet Mask This field is enabled if you select Use Fixed IP Address.
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 in the network.
Gateway This field is enabled if you select Use Fixed IP Address.
Enter the IP address of the gateway. The Zyxel Device sends packets to the gateway when
it does not know how to route the packet to its destination. The gateway should be on the
same network as the interface.
Table 120 Configuration > Network > Interface > VLAN > Add / Edit (continued)
LABEL DESCRIPTION
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