> From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Mark Harper > Sent: Tuesday, July 17, 2007 5:51 AM
> We have a problem where we have a machine on 2 LANS and want > to monitor > when a LAN goes down via SNMP Get polling. Monitor ifOperStatus for the interfaces. You can read alternately from both interfaces. If everything times out, you know both interfaces are down. > The machine has two LAN connections and two IP addresses, > > 10.49.254.1 > 10.49.255.1 > > When one of the LAN connections (10.49.254.1) is broken by > removing the > LAN cable from the machine, > > ping 10.49.254.1 > > times out and fails thus detecting the LAN failure. > > However, > > snmpget -v2c -c cctv 10.49.254.1 1.3.6.1.2.1.1.6.0 > > succeeds thus giving no indication of the fault we were > trying to detect. > > Why does this occur and is there a solution to make snmpget > detect the > failure successfully? I would not expect this to work as you intend. The reason is left as an exercise for the student. Hint: only ping should be used for pinging. HTH, Mike ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Net-snmp-users mailing list Net-snmp-users@lists.sourceforge.net Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users