ZyXEL ZYWALL USG 200 User Guide - Page 293
Characteristics, Ethernet, Cellular, Bridge, Virtual
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Chapter 13 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 AUX port. • 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. See Section 13.2 on page 295, Chapter 14 on page 367, and Section 13.10 on page 357 for details. The other types of interfaces--Ethernet, PPP, cellular, VLAN, bridge, and virtual--have a lot of similar characteristics. These characteristics are listed in the following table and discussed in more detail below. Table 57 Ethernet, PPP, Cellular, VLAN, Bridge, and Virtual Interface Characteristics CHARACTERISTICS ETHERNET ETHERNET ETHERNET PPP CELLULAR VLAN BRIDGE VIRTUAL Name* opt wan1, lan1, lan2, ppp cellularx vlanx brx ** wan2 ext-wlan, x dmz Configurable Zone Yes No No No No Yes Yes No IP Address Assignment Static IP address Yes Yes Yes Yes Yes Yes Yes Yes DHCP client Yes Yes No Yes Yes Yes Yes No Routing metric Yes Yes Yes Yes Yes Yes Yes Yes Interface Parameters Bandwidth Yes Yes Yes Yes Yes Yes Yes Yes restrictions Packet size (MTU) Yes Yes Yes Yes Yes Yes Yes No DHCP DHCP server Yes No Yes No No Yes Yes No DHCP relay Yes No Yes No No Yes Yes No Connectivity Check Yes Yes No Yes No Yes Yes No - * The format of interface names other than the Ethernet and ppp interface names is strict. Each name consists of 2-4 letters (interface type), followed by a number (x). For most interfaces, x is limited by the maximum number of the type of interface. For VLAN interfaces, x is defined by the number you enter in the VLAN name field. For example, Ethernet interface names are wan1, wan2, opt, lan1, lan2, ext-wlan, dmz; VLAN interfaces are vlan0, vlan1, vlan2, ...; and so on. ** - The names of virtual interfaces are derived from the interfaces on which they are created. For example, virtual interfaces created on Ethernet interface wan1 are called wan1:1, wan1:2, 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. ZyWALL USG 100/200 Series User's Guide 293
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