AH load balancing support

configname: CONFIG_IP_VS_PROTO_AH

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>IP virtual server support
└─>AH load balancing support
In linux kernel since version 2.6.12  
This option enables support for load balancing AH (Authentication
Header) transport protocol. Say Y if unsure.