Can P334w support IPSec passthrough?
Yes, P334w can support IPSec passthrough. P334w doesn’t only support IPSec/VPN gateway, it can also be a NAT router supporting IPSec passthrough. If the VPN connection is initiated from the security gateway behind P334w, no configuration is necessary for NAT nor Firewall. If the VPN connection is initiated from the security gateway outside of P334w, NAT port forwarding and Firewall forwarding are necessary. To configure NAT port forwarding, please go to WEB interface, Setup/ “SUA/NAT”, put the secure gateway’s IP address in default server. To configure Firewall forwarding, please go to WEB interface, Setup/Firewall, select Packet Direction to WAN to LAN, and create a firewall rule the forwards IKE(UDP:500).