ZyXEL Communications VPN Series - Virtual Interfaces; Virtual Interfaces Add;Edit

Chapter 10 Interfaces
ZyWALL/USG Series User’s Guide
285
10.3.2 Virtual Interfaces
Use virtual interfaces to tell the ZyWALL/USG where to route packets. Virtual interfaces can also be
used in VPN gateways (see Chapter 29 on page 534) and VRRP groups (see Chapter 41 on page
707).
Virtual interfaces can be created on top of Ethernet interfaces, VLAN interfaces, or bridge
interfaces. Virtual VLAN interfaces recognize and use the same VLAN ID. Otherwise, there is no
difference between each type of virtual interface. Network policies (for example, security policies)
that apply to the underlying interface automatically apply to the virtual interface as well.
Like other interfaces, virtual interfaces have an IP address, subnet mask, and gateway used to
make routing decisions. However, you have to manually specify the IP address and subnet mask;
virtual interfaces cannot be DHCP clients. Like other interfaces, you can restrict bandwidth through
virtual interfaces, but you cannot change the MTU. The virtual interface uses the same MTU that the
underlying interface uses. Unlike other interfaces, virtual interfaces do not provide DHCP services,
and they do not verify that the gateway is available.
10.3.3 Virtual Interfaces Add/Edit
This screen lets you configure IP address assignment and interface parameters for virtual
interfaces. To access this screen, click the Create Virtual Interface icon in the Ethernet, VLAN, or
bridge interface summary screen.
Figure 218 Configuration > Network > Interface > Create Virtual Interface
Each field is described in the table below.
Table 101 Configuration > Network > Interface > Create Virtual Interface
LABEL DESCRIPTION
Interface Properties
Interface Name This field is read-only. It displays the name of the virtual interface, which is
automatically derived from the underlying Ethernet interface, VLAN interface, or bridge
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.