Chapter 6 Interfaces
UAG CLI Reference Guide
54
Port groups, and trunks 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.
* - 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, lan1, lan2, 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.
6.1.2 Relationships Between Interfaces
In the UAG, interfaces are usually created on top of other interfaces. Only Ethernet interfaces are
created directly on top of the physical ports (or port groups). The relationships between interfaces
are explained in the following table.
Table 11 Ethernet, VLAN, Bridge, PPP, and Virtual Interface Characteristics
CHARACTERISTICS ETHERNET ETHERNET VLAN BRIDGE PPP VIRTUAL
Name* wan1, wan2 lan1, lan2,
dmz
vlanx brx pppx **
Configurable Zone No No
Yes Yes No No
IP Address Assignment
Static IP address
Yes Yes Yes Yes Yes Yes
DHCP client Yes No Yes Yes Yes No
Routing metric Yes Yes Yes Yes Yes Yes
Interface Parameters
Bandwidth
restrictions
Yes Yes Yes Yes Yes Yes
Packet size (MTU)
Yes Yes Yes Yes Yes No
Data size (MSS) Yes Yes Yes Yes Yes No
DHCP
DHCP server No
Yes Yes Yes No No
DHCP relay No Yes Yes Yes No No
Connectivity Check Yes No Yes Yes Yes No
Table 12 Relationships Between Different Types of Interfaces
INTERFACE REQUIRED PORT / INTERFACE
port group physical port
Ethernet interface physical port
port group
VLAN interface Ethernet interface
bridge interface Ethernet interface*
VLAN interface*
PPPoE/PPTP interface Ethernet interface*
VLAN interface*
bridge interface