Tanium Push Integration with ServiceNow

[miles9]

Hi Community, 

Has anyone integrated Tanium Push Integration into their instance where thier IP Address Access Control is blocking all IP ranges except for specific whitelisted IPs?

We are trying to integrate Tanium but are unable to becuase I don't think I am getting all the IPs whitelisted and get a "Unable to connect to ServiceNow instance: Failed to connect to ServiceNow, Error: Response code 403 (Forbidden)" in tainum console.

[luv2learn702]

With the push connection, did you run into issues with assets having placeholder serial number values erroring out because it is considered 'duplicate' values?  If so, how did you resolve this?