CMAP parameter*     ==  CMAP=resultStr:mapName:connMap
           connMap  ==  ProtoList:dstHostList:srcHostList
                    --  default: none

A generic parameter to make some parameters be conditional on the current connection. When the protocol, the destination and the source of the current connection match the connMap, this map is enabled providing resultStr string to be used for mapName.
Not only host name/address but also port number of destination servers can be used for matching in dstHostList. A typical usage of this parameter is for applying filter conditionally.