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ZyXEL Communications ZyWALL 2 Plus User Manual

Page 59

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Chapter 2 Introducing the Web Configurator

ZyWALL 2 Plus User’s Guide

59

System Time

This field displays your ZyWALL’s present

date (in yyyy-mm-dd format) and time

(in hh:mm:ss format) along with the difference from the Greenwich Mean Time

(GMT) zone. The difference from GMT is based on the time zone. It is also

adjusted for Daylight Saving Time if you set the ZyWALL to use it. Click the field

label to go to the screen where you can modify the ZyWALL’s date and time

settings.

Device Mode

This displays whether the ZyWALL is functioning as a router or a bridge. Click the

field label to go to the screen where you can configure the ZyWALL as a router or a

bridge.

Firewall

This displays whether or not the ZyWALL’s firewall is activated. Click the field label

to go to the screen where you can turn the firewall on or off.

System

Resources

Flash

The first number shows how many megabytes of the flash the ZyWALL is using.

Memory

The first number shows how many megabytes of the heap memory the ZyWALL is

using. Heap memory refers to the memory that is not used by ZyNOS (ZyXEL

Network Operating System) and is thus available for running processes like NAT,

VPN and the firewall.
The second number shows the ZyWALL's total heap memory (in megabytes).
The bar displays what percent of the ZyWALL's heap memory is in use. The bar

turns from green to red when the maximum is being approached.

Sessions

The first number shows how many sessions are currently open on the ZyWALL.

This includes all sessions that are currently traversing the ZyWALL, terminating at

the ZyWALL or initiated from the ZyWALL
The second number is the maximum number of sessions that can be open at one

time.
The bar displays what percent of the maximum number of sessions is in use. The

bar turns from green to red when the maximum is being approached.

CPU

This field displays what percentage of the ZyWALL’s processing ability is currently

used. When this percentage is close to 100%, the ZyWALL is running at full load,

and the throughput is not going to improve anymore. If you want some applications

to have more throughput, you should turn off other applications (for example, using

bandwidth management.

Network Status

IP/Netmask

Address

This is the IP address and subnet mask of your ZyWALL in dotted decimal

notation.

Gateway IP

Address

This is the gateway IP address.

Rapid Spanning

Tree Protocol

This shows whether RSTP (Rapid Spanning Tree Protocol) is active or not. The

following labels or values relative to RSTP do not apply when RSTP is disabled.

Bridge Priority

This is the bridge priority of the ZyWALL. The bridge (or switch) with the lowest

bridge priority value in the network is the root bridge (the base of the spanning

tree).

Bridge Hello

Time

This is the interval of BPDUs (Bridge Protocol Data Units) from the root bridge.

Bridge Max Age

This is the predefined interval that a bridge waits to get a Hello message (BPDU)

from the root bridge.

Forward Delay

This is the forward delay interval.

Bridge Port

This is the port type. Port types are:

WAN, LAN, DMZ and WLAN.

Table 4 Web Configurator HOME Screen in Bridge Mode (continued)

LABEL

DESCRIPTION