Chapter 6 Interfaces
•The auxiliary interface, along with an external modem, provides an interface the ZyWALL can use to dial out. This interface can be used as a backup WAN interface, for example. The auxiliary interface controls the DIAL BACKUP port (labeled AUX on some models).
•Trunks manage load balancing between interfaces.
Port groups, trunks, and the auxiliary interface have a lot of characteristics that are specific to each type of interface. These characteristics are listed in the following tables and discussed in more detail farther on.
Table 11 Characteristics of Ethernet, VLAN, Bridge, PPPoE/PPTP, and Virtual Interface (ZyWALL USG 300 and Above)
CHARACTERISTICS | ETHERNET | VLAN | BRIDGE | PPPOE/PPTP | VIRTUAL |
Name* | gex | vlanx | brx | pppx | ** |
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IP Address Assignment |
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static IP address | Yes | Yes | Yes | Yes | Yes |
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DHCP client | Yes | Yes | Yes | Yes | No |
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routing metric | Yes | Yes | Yes | Yes | Yes |
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Interface Parameters |
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bandwidth restrictions | Yes | Yes | Yes | Yes | Yes |
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packet size (MTU) | Yes | Yes | Yes | Yes | No |
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data size (MSS) | Yes | Yes | Yes | Yes | No |
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traffic prioritization | Yes | Yes | Yes | Yes | No |
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DHCP |
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DHCP server | Yes | Yes | Yes | No | No |
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DHCP relay | Yes | Yes | Yes | No | No |
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Ping Check | Yes | Yes | Yes | Yes | No |
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*- The format of interface names is strict. Each name consists of
**- The names of virtual interfaces are derived from the interfaces on which they are created. For example, virtual interfaces created on Ethernet interface ge1 are called ge1:1, ge1:2, and so on. Virtual interfaces created on VLAN interface vlan2 are called vlan2:1, vlan2:2, and so on. You cannot specify the number after the colon(:) in the web configurator; it is a sequential number. You can specify the number after the colon if you use the CLI to set up a virtual Interface Parameters
Table 12 Ethernet, VLAN, Bridge, PPP, and Virtual Interface Characteristics (ZyWALL USG 200 and Below Models)
CHARACTERISTICS | ETHERNET | ETHERNET | ETHERNET | VLAN | BRIDGE | PPP | VIRTUAL |
Name* | opt | wan1, wan2 | lan1, ext- | vlanx | brx | pppx | ** |
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| wlan, dmz |
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Configurable Zone | Yes | No | No | Yes | Yes | No | No |
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IP Address Assignment |
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Static IP address | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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DHCP client | Yes | Yes | No | Yes | Yes | Yes | No |
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Routing metric | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
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Interface Parameters |
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Bandwidth | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
restrictions |
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54 |
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ZyWALL (ZLD) CLI Reference Guide | |
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