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How to change snmp udp 161 to tcp 161 for monitoring devices



In the infrastructure that monitoring exists a firewall that this blocking port UDP 161 and only allows tcp 161, exists the procedure to change my monitoring in PRTG over tcp 161? Its very important to have ready this monitoring for my client.

Thanks for the support


prtg snmp tcp

Created on Nov 7, 2012 10:24:56 PM

4 Replies



as you want to monitor SNMP I'm afraid it is not possible to change the protocol to TCP as the implementation of SNMP requires UDP. Sorry.
Best regards

Created on Nov 8, 2012 6:53:51 AM by  Konstantin Wolff [Paessler Support]




On the Configuration Group - Data of access for equipment SNMP specify port 161 (implicit over udp), in the network that monitoring for my devices, the port tcp 161 this opening, by such reason I require to monitor on tcp 161, in order to confirm, It is possible in PRTG to change to TCP 161?

Created on Nov 8, 2012 3:33:16 PM



Sorry no. PRTG can only so SNMP via UDP.

Created on Nov 8, 2012 5:30:58 PM by  Torsten Lindner [Paessler Support]



This is such a bummer because I also really need TCP 161 working.

Created on Nov 20, 2020 1:40:18 PM

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