ZyXEL Communications G-2000 Plus - Manual (Page 42)

ZyAIR G-2000 Plus User’s Guide
41 Chapter 1 Getting to Know Your ZyAIR
1.2.2.22 Multicast
Traditionally, IP packets are transmitted in two ways - unicast or broadcast. Multicast is a
third way to deliver IP packets to a group of hosts. IGMP (Internet Group Management
Protocol) is the protocol used to support multicast groups. The latest version is version 2 (see
RFC 2236). The ZyAIR supports versions 1 and 2.
1.2.2.23 IP Alias
IP Alias allows you to partition a physical network into logical networks over the same
Ethernet interface. The ZyAIR supports three logical LAN interfaces via its single physical
Ethernet LAN interface with the ZyAIR itself as the gateway for each LAN network.
1.2.2.24 IP Policy Routing
IP Policy Routing provides a mechanism to override the default routing behavior and alter
packet forwarding based on the policies defined by the network administrator.
1.2.2.25 SNMP
SNMP (Simple Network Management Protocol) is a protocol used for exchanging
management information between network devices. SNMP is a member of the TCP/IP
protocol suite. Your ZyAIR supports SNMP agent functionality, which allows a manger
station to manage and monitor the ZyAIR through the network. The ZyAIR supports SNMP
version one (SNMPv1) and version two c (SNMPv2c).
1.2.2.26 Full Network Management
The embedded web configurator is an all-platform web-based utility that allows you to easily
access the ZyAIR’s management settings. Most functions of the ZyAIR are also software
configurable via the SMT (System Management Terminal) interface. The SMT is a menu-
driven interface that you can access from a terminal emulator over a telnet connection.
1.2.2.27 Logging and Tracing
• Built-in message logging and packet tracing.
• Unix syslog facility support.
1.2.2.28 Diagnostics Capabilities
The ZyAIR can perform self-diagnostic tests. These tests check the integrity of the following
circuitry:
• FLASH memory
• DRAM
• LAN port
• Wireless port