Virtual Interfaces; Virtual Interfaces Add/Edit - ZyXEL Communications ZyWall USG 2000 User Manual

10.12 Virtual Interfaces

Use virtual interfaces to tell the ZyWALL where to route packets. Virtual interfaces
can also be used in VPN gateways (see
(see Chapter 36 on page
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, firewall rules) 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.

10.12.1 Virtual Interfaces Add/Edit

This screen lets you configure IP address assignment and interface parameters for
virtual interfaces. To access this screen, click an Add icon next to an Ethernet
interface, VLAN interface, or bridge interface in the respective interface summary
screen.
Figure 139 Network > Interface > Add
ZyWALL USG 2000 User's Guide
Chapter 21 on page
595).
Chapter 10 Interfaces
329) and VRRP groups
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