How to restrict specific IP address to use specific port only in ServiceNow Discovery

[Mohit23]

Query :- How to restrict specific IP address to use specific port only in ServiceNow Discovery

Sometime we have observe that Network devices should use only SNMP protocol, but some of the network devices are responding to SSH port as well, because of that some network devices gets discover/ Classify as Linux servers.

So we want to restrict the specific IP to use only specific ports while discovery is running.

Please share your thoughts if this is feasible.

Thank you very much. 

[Runjay Patel]

Hi @Mohit23 ,

You can not control it from ServiceNow end but you can control from network side.

Network devices default use SNMP protocol as respective ports are found open, if you block the port then it will look for other like SSH port .

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[Mohit23]

Hi @Runjay Patel  

Thank you for your response, But there are certain Network devices in our environment which Network team cannot block the port 22 at there end and even there is no firewall between MID servers and network devices since those are in same domain, so we were thinking to restrict the ports at Discovery level.

[Runjay Patel]

are you getting any error?

[AndersBGS]

Hi @Mohit23 ,

Please notice that after first successfully scan it will have an IP affinity rule for default port.  

If my answer has helped with your question, please mark my answer as accepted solution and give a thumb up.

Best regards

Anders