[mrtg] Re: Monitoring stopped

[Garman, Christopher]

This port scanner, like many others, appears to do TCP port scanning.  Since
SNMP listens on a UDP port, you need a UDP port scanner like NMAP.

Also, if you are looking for a FREE
scanner/pinger/DNS/traceroute/finger/whois type tool for Windows, try NetLab
at http://www.winsite.com/info/pc/win95/netutil/netlab95.zip/


> -----Original Message-----
> From:	Landa, Brian [SMTP:Landa at trendcs.com]
> Sent:	Thursday, September 23, 1999 10:11 AM
> To:	K Mitchell; mrtg at list.ee.ethz.ch
> Subject:	[mrtg] Re: Monitoring stopped
> 
> I would then run a port scanner from the MRTG workSta and see if the SNMP
> port is open. you can get a very nice one from this web site..I would ping
> the server, run a trace route, run a port scanner on the Web server IP
> address.
> 
> 
> http://www.aggroup.com/ag/run.taf
> 
> and download the ADnetTools you will not be disappoint.
> 
> 
> -----Original Message-----
> From: K Mitchell [mailto:mitch at keyconn.net]
> Sent: Thursday, September 23, 1999 11:46 AM
> To: Landa, Brian; mrtg at list.ee.ethz.ch
> Subject: RE: [mrtg] Monitoring stopped
> 
> 
> At 10:23 AM 9/23/99 -0400, Landa, Brian wrote:
> >Did anyone change SNMP on the WebServer? anyone change the IP address or
> >public string on the server, anyone put a firewall up or change any
> >access-lists not to permit SNMP?I would also re run cfgmaker again , but
> >make it a sep config and try running it again? try to pinging the web
> server
> >and download a port checker and point it to the web server, put the port
> >checker on the MRTG station and point it to the web server and see if the
> >SNMP port is open, if not you have a firewall issue.
> 
> I don't think SNMP was changed in any way, but I can't say for sure. SNMP
> is running on the server but SNMP traps weren't. I started that but made
> no
> difference. Ran cfgmaker and got the following:
> SNMP Error:
> no response received
> SNMPv1_Session <remote host: "xxx.xxx.xxx.xxx" [xxx.xxx.xxx.xxx].161
>                   community: "public"
>                  request ID: 1263682567
>                 PDU bufsize: 8000 bytes
>                     timeout: 2s
>                     retries: 5
>                     backoff: 1>
> SNMPGET Problem for sysDescr sysContact sysName sysLocation ifNumber
> sysObjectID on public at xxx.xxx.xxx.xxx
> 
> Thanks,
> -- 
> Kirk Mitchell-General Manager        mitch at keyconn.net
> Keystone Connect                     Unlock Your World
> Altoona, PA   814-941-5000      http://www.keyconn.net
> 
> --
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