CommView Remote Agent 

CommView Remote Agent is an application for remote network traffic monitoring. It allows CommView users to capture network traffic on any computer where Remote Agent is running, regardless of the computer's physical location.
network remote monitoring sniffer remote capturing traffic packet commview

Easy Network Service Monitor 

Easy to use and low cost tool for network, applications and services monitoring, fault identification, notification and reporting as well as service level agreement monitoring and reporting.
server service level agreement sla network monitor network applications network availability fault management network management network performance

Alchemy Ping 

A nice FREE graphic replacement for the standard PING utility.
network management software network design software system monitoring software visual trace route system administration tool server monitoring tool network troubleshooting tool website check event viewer nt administration snmp