interface $interfaceTunnelName 
$tunnelConf
no ip redirects
ip mtu 1440
ip nhrp map multicast dynamic
ip nhrp network-id $networkId
no ip split-horizon eigrp $eigrp
no ip next-hop-self eigrp $eigrp
tunnel source $wanInterfaceName
tunnel mode gre multipoint
zone-member security VPN
tunnel protection ipsec profile $hub_profile