ZyXEL Communications unified security gateway User Manual

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Chapter 11 Interfaces
ZyWALL USG 20/20W User’s Guide
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11.10  Interface Technical Reference
Here is more detailed information about interfaces on the ZyWALL.
IP Address Assignment
Most interfaces have an IP address and a subnet mask. This information is used to 
create an entry in the routing table.
Figure 181   Example: Entry in the Routing Table Derived from Interfaces
For example, if the ZyWALL gets a packet with a destination address of 
100.100.25.25, it routes the packet to interface lan1. If the ZyWALL gets a packet 
with a destination address of 200.200.200.200, it routes the packet to interface 
wan1.
In most interfaces, you can enter the IP address and subnet mask manually. In 
PPPoE/PPTP interfaces, however, the subnet mask is always 255.255.255.255 
Egress 
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.
Ingress 
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.
OK
Click OK to save your changes back to the ZyWALL.
Cancel
Click Cancel to exit this screen without saving.
Table 72   Configuration > Network > Interface > Add (continued)
LABEL
DESCRIPTION
Table 73   Example: Routing Table Entries for Interfaces
IP ADDRESS(ES)
DESTINATION
100.100.1.1/16
lan1
200.200.200.1/24
wan1
lan1
wan1