The ANS network load balancer supports two NAT modes: FullNAT and DNAT. The FullNAT mode includes both SNAT and DNAT.
DNAT (applicable to VLAN networks only): Translates the destination address of client requests. The VIP is used to communicate with clients. After receiving a request, the destination address is automatically translated from the VIP to the real IP address (RIP) of the backend server.
SNAT: Translates the source address of client requests. The local IP address (LIP) is used to communicate with backend servers. After receiving a request, the client address is automatically translated to a fixed LIP, so the backend server is not aware of the real client address.
