SonicWall Community stirng / multiple networks / spiceworks

I am trying to get the most potential out of using spiceworks.

I have sonicwalls at all my office locations I have each office's community string set up for the IP address of the remote collectors with SNMP. Should I set the IP to where spiceworks is centrally installed or keep it on the remote collectors IP address?

Any help would be much appreciated

thank you