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How to monitor Cisco VPN Tunnel with WhatsUp Gold

Download VPN Monitoring Tool:

You will need to download vpnmonitor.exe application from our website. This is command-line tool that accepts 3 parameters:

C:\>vpnmonitor
Cisco VPN Tunnel Monitoring Tool, Paul Greenberg, July 2008

Command-Line Switches:

• /h:<Host> IP address of the local VPN endpoint
• /c:<Community> community name
• /v:<VPN Endpoint> IP address of the remote VPN endpoint

Copy this file to C:\WINDOWS or C:\WINNT.

Create WhatsUp Gold Active Monitor for VPN:

1. Open WhatsUp Gold
2. Click "Configure"
3. Click "Active Monitor Library"
4. Click "New" -> Select "Active Script Monitor"

Active Script Monitor structure:

1) Name:

2) Description:

3) Timeout: 10 sec

4) Script Type: VBScript

5) Script Text:

' IPSEC VPN Monitor
' Version: 1.0
'
Set WSHELL = CreateObject("WScript.Shell")
APP = "VPNMONITOR.exe"                   ' IPSEC VPN Monitor
VPNSERVER = "192.168.99.5"              ' Local VPN end-point
REMOTEPEER = "45.123.22.99"        ' Remote VPN end-point
RO_C = "2dasdjjklsadas23X"                  ' Community string
EXPECTED_RESULT = "SYSTEM: VPN TUNNEL IS UP"
APP_NAME = "cmd.exe /c " & APP & " /h:" & VPNSERVER & " /c:" & RO_C & " /v:" & REMOTEPEER
Set iRES = WSHELL.Exec(APP_NAME)
Set OUT = iRES.StdOut
TUNNEL = 0
While Not OUT.AtEndOfStream
   LINE = UCase(OUT.ReadLine)
   IF InStr(LINE,EXPECTED_RESULT) Then
       TUNNEL = 1
   End IF
Wend
IF (TUNNEL = 1) Then
 Context.SetResult 0, "Tunnel is up"
Else
 INFO = "VPN Tunnel to (" & REMOTEPEER & ") is DONW !!!"
 'Context.LogMessage INFO
 Context.SetResult 1, INFO
End IF
Set WSHELL = Nothing
 

Final step is to attach Active Monitor to device.