Allowing ESN Through Firewall Wednesday, September 2, 2020 3:43 PM ESN migrates meters from IWR and FM Audit to EAutomate. The ESN connection relies on this port forward from the outside world to the webserver (192.168.0.10) SonicWall Page 1 Outside world to webserver 192.168.0.10 (WANIP)-(Einfo Private) SonicWall Page 2