9. Management Assistant

Overview

The following settings are discussed in this chapter :

· Admin Setup

· Email Alert

· SNMP

· Syslog

· Diagnostic Tools

· Upgrade Firmware

Admin Setup

This page is intended for various administrator related settings. Please see “Admin Setup” section in Chapter 2 for more details.

Admin Setup Page

Email Alert

This feature will send a warning email, informing the System Administrator that one of the WAN ports has been disconnected.

Email Alert – You can choose to enable or disable the sending of a warning email.

Email Sender Address – The email address which will send the warning email.

Email (SMTP) Server Address – The email server address that the warning email will be sent from.

Email Recipient Address – The email address of the System Administrator the email will be sent to.

Email Alert Page

Settings – Email Alert

Global Setting

· Enable & Link down – To enable or disable the Alert Mail sending in the event one of the WAN ports is disconnected.

· Excessive ping – This function is useful to prevent ICMP packets attacks from WAN or LAN onk the device. It will drop the packets if the ping times exceed the threshold value.

Email Alert Configuration

The purpose of email alert is in the event a WAN port is disconnected or mal-functions, it will send an email message to inform the recipient.

· Email (SMTP) Server Address – The e-mail server address. (ex: mail.yourdomain.com)

· User Name – The user name of an e-mail sender address for authentication. (ex: abc)

· Password – The password of an e-mail sender address for authentication. (ex:12345)

· Sender Address – The email address of the sender.

· Recipient Address – The email address of the receiver. (ex: admin@mydomain.com).

Email Alert Configuration list

List of configured Email Alerts.

Note:

If the email server is on the LAN side, then SMTP server should be entered as an IP address ( ex. 192.168.1.x ).

If the email server is on LAN site, and the SMTP server is using domain name instead of IP address, then you should enable “DNS loop-back” for that FQDN in the Advanced Setup > Advanced Features page.

SNMP

SNMP (Simple Network Management Protocol) is used in network management to monitor network devices for conditions that may requirer attention.

This section is only useful if you have installed a SNMP (Simple Network Management Protocol) software on your PC. If so, you may use a standard MIB II file with your Duolinks SW24 Series Load Balancer to monitor network and device activity.

SNMP Configuration Page

Settings – SNMP

System Information	This is the system information which will identify this device.
Community	A relationship between a SNMP agent and a set of SNMP managers that defines authentication, access control and proxy characteristics.
Trap Targets	Up to three IP addresses can be entered. SNMP Trap information will be sent to these target addresses.

Syslog

Syslog is a standard for sending log messages within a TCP/IP network and is often used for network and security auditing purposes.

A syslog client usually sends a syslog message to the syslog server using UDP or TCP protocol.

The Duolinks SW24 Series Load Balancer can internally store the last 100 Syslog messages and/or send them on the fly to the specified Syslog Server for real time system information updates.

Syslog Configuration – Syslog Configuration allows you to specify where to send system information. You can define up to three remote Syslog Servers and define priority level for each.

Message Status – Messages sent will only be kept locally if “keep sent message” is checked. Only the last 100 messages are kept in device memory and are cleared during a reboot or power off.

SNTP – You can define up to 3 SNTP servers to enable the load balancer to obtain GMT. By defining your time zone, your system and logs will show the current date and the correct time. If no time servers are defined by the user, the system will try to obtain GMT time from a public SNTP server. DST (Daylight Saving Time) is not available.

Syslog Page

Syslog Configuration

Syslog Delivery

· Sending Out – If checked, the device will send syslog messages to other machines (log servers).

· Keep Sent Message – If checked, the sent messages will be kept on the device, otherwise they will be deleted.

· Syslog Servers –

· IP Address: Up to 3 syslog servers can be used.

· Enable: If checked, the log message will be sent to the server. You can disable or enable each server temporarily.

· Port: If your syslog server does not use the default port (514), change it.

· Log Priority Level: The messages are grouped into 8 priority levels, from Emergency to Debug. The lower level it is, the more messages it will generate. Emergency is the highest priority level, and Debug is the lowest. Setting priority to Debug will send all generated messages.

Log Priority Modules

This feature displays and controls the current log priority for each module. For a module with different priorities, the different level of messages will be generated in Syslog. A lower level of log priority for a module will generate more messages. DEBUG is the lowest level of log priority.

SNTP Configuration

· SNTP Servers – Up to 3 SNTP servers can be used for GMT. You can enter its IP or Domain address here. You can use some servers such as time-a.nist.gov, time.nist.gov, time-nw.nist.gov, etc.

· Time Zone – This lists all time differences between GMT and the local time selected by you.

Diagnostic Tools

This page provides tools for troubleshooting the network connectivity, DNS name resolving and Arp lookup problem.

IP Tools

ICMP Method :
Test network connectivity by issuing ICMP Echo Request (Ping) packets to the specified destination (Name/IP). The detailed result will be shown in each column.

HTTP Method :
Test network connectivity by establishing HTTP (TCP Port 80) session to the specified destination (Name/IP). The detailed result will be shown in each column.

DNS Method :
Test network connectivity by sending DNS query (UDP Port 53) packets using the specified FQDN. The corresponding IP address will be shown in the destination column if succeeded.

Arp Query Check

Check Arp :
Lookup the MAC address by specifing the corresponding IP address, detailed result will be shown in each column if found.

Diagnostic Tools Page

Upgrade Firmware

The Upgrade Firmware screen allows you to upgrade firmware or to backup and restore your system configuration.

Firmware Upgrade Page

· You can backup your system configuration by clicking Save. It will save the system configuration on to your hard drive.

· You can perform firmware upgrades by inputting the correct username, password and the firmware file location and by clicking Upgrade. If required (please see firmware release notes), you may launch a Factory Reset by clicking Factory Settings.

Important note:

Do not Reset or Restart the device while a firmware or configuration update is in progress, as it may cause severe and permanent damage to the load balancer.

Damage resulting in resetting your load balancer during a firmware or configuration update is NOT covered by the standard 2 year warranty.