Missing description and SNMP information after scan
4 posts · Closed
After I run a scan, there is only IP Address and Response Time info showing up for my LAN, no description or other SNMP information. How can I get other data?
If the Network Scanner displays only one computer, it could mean that:
- its settings are incorrect;
- a firewall is blocking connections;
- IP address settings are incorrect.
If you see multiple devices, but they do not have SNMP information displayed, or their Windows Services status, it could mean that:
- the target devices do not support SNMP;
- the connection settings (i.e. SNMP version and/or access credentials) are incorrect.
The Windows Services status would normally require you to run this application under a domain admin account. If these devices are not Windows computers, there will be nothing shown. On top of that, if there is a firewall on your computer, target device, or in-between, it may also prevent this from working.
May I ask, what are you trying to achieve?
Thanks for your reply.
I want to use it to scan Cisco switches and routers.
I tried turning the firewall off on my PC, but it was still not showing the Hostname and other information, except IPs.
Please make sure that your SNMP settings are correct (community string or V3 user name/password/encryption options, whichever you are using).
Then, if the settings are correct, run Wireshark on your PC and see if SNMP requests are sent and if any SNMP replies are received.
Most likely you will see requests being sent, but no responses being received. In that case, it's up to you to find out why this happens, as there is no issue with the NetScanner software. You can also try the same SNMP settings with Snmpwalk.