Several methods for testing network SNMP connections (several solutions that I normally use to debug SNMP programs)

Several methods for testing network SNMP connections (several solutions that I normally use to debug SNMP programs)

1. How to know which ports on this machine are active.
There are two tools to help you understand which ports are open in your system.
One is to enter "Netstat-an" at the command line to see which ports are active.
The other is using the FPort tool, which is also used under the command line to list the binding relationship between the current process and the active port. Administrator privileges are required. 2. How to determine if the application sent a snmptrap message.
Set 127.0.0.1 in the trap target of the SNMP servers so that the trap message will be sent to itself. Viewing the current event in SNMPC will show whether the Snmptrap message was received by the native and the application sent a snmptrap message. Download Address: AT-SNMPC V7 Chinese version
3. How to determine if the host can receive snmptrap messages.
Using ethereal, capture a packet of IP packets that may contain SNMPTRAP messages, and then analyze the packets if they are received. If you receive the message, the IP packets destined for this machine will be displayed in ethereal. Download Address: ethereal v0.99.0 4. How to determine the host's SNMP service is normal
Using the Snmpwalk application in NET-SNMP is the simplest tool to check if the SNMP extension agent is normal, and at the command line enter: "Snmpwalk-v 1-c public destdoname". NET-SNMP Download Address: net-snmp5.4

5. How to determine if read-write is normal in the host SNMP service
Using Snmpset in Net-snmp, enter "snmpset-v 1-c public destdoname xxx.yyy" at the command line