Zscaler Tunnel Chooser
Answer six questions about a location - bandwidth, HA, static IP, encryption, GRE support, endpoint NAT - and get the deterministic GRE-vs-IPsec recommendation with the minimum tunnel count, computed from Zscaler's own published figures, every step shown.
NetworkingEnter the location's required bandwidth in Mbps to compute the recommendation - or press Example to load the documentation's 2 Gbps case.