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| Chapter 10 Interface |
| Table 61 Network > Interface > Auxiliary (continued) | |
| LABEL | DESCRIPTION |
| Authentication | Select the authentication protocol to use for outgoing calls. Choices are: |
| Type | CHAP/PAP - Your ZyWALL accepts either CHAP or PAP, as requested by the |
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| computer you are dialing. |
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| CHAP - Your ZyWALL accepts CHAP only. |
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| PAP - Your ZyWALL accepts PAP only. |
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| MSCHAP - Your ZyWALL accepts MSCHAP only. |
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| Timeout | Type the number of seconds the ZyWALL tries to set up a connection before it |
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| stops. Allowed values are 30 - 120. |
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| Idle timeout | Type the number of seconds the ZyWALL should wait for traffic before it |
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| automatically disconnects the connection. Set this field to zero to disable the |
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| idle timeout. Allowed values are 0 - 360. |
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10.8 Virtual Interfaces
Use virtual interfaces to tell the ZyWALL where to route packets. Virtual interfaces can also be used in VPN gateways (see Chapter 20 on page 291) and VRRP groups (see Chapter 33 on page 493).
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.
10.8.1 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.
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