ZyXEL Communications ZyWALL 300 User Manual

 Chapter 10 Interface

ZyWALL USG 300 User’s Guide

Each field is described in the table below.     

Table 50   Network > Interface > Ethernet > Edit

Ethernet Interface 
Properties

Enable

Select this to enable this interface. Clear this to disable this interface.

Interface Name

This field is read-only. This is the name of the Ethernet interface.

Description

Enter a description of this interface. It is not used elsewhere. You can use 
alphanumeric and 

()+/:=?!*#@$_%-

 characters, and it can be up to 60 

characters long.

IP Address 
Assignment

These IP address fields configure an 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

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. See 

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 ZyWALL 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.

Metric

Enter the priority of the gateway (if any) on this interface. The ZyWALL decides 
which gateway to use based on this priority. The lower the number, the higher 
the priority. If two or more gateways have the same priority, the ZyWALL uses 
the one that was configured first.

Interface 
Parameters

Upstream 
Bandwidth

Enter the maximum amount of traffic, in kilobits per second, the ZyWALL can 
send through the interface to the network. Allowed values are 0 - 1048576.

Downstream 
Bandwidth

This is reserved for future use.
Enter the maximum amount of traffic, in kilobits per second, the ZyWALL can 
receive from the network through the interface. Allowed values are 0 - 1048576.

MTU

Maximum Transmission Unit. Type the maximum size of each data packet, in 
bytes, that can move through this interface. If a larger packet arrives, the 
ZyWALL divides it into smaller fragments. Allowed values are 576 - 1500. 
Usually, this value is 1500.

RIP Settings

See 

 for more information about RIP.

Enable RIP

Select this to enable RIP in this interface.