Systems and methods that manage multiple stack environments are provided. In one example, a system may include, for example, a first protocol processing stack, a second protocol processing stack and a mapper. The mapper may be coupled to the first protocol processing stack and to the second protocol processing stack. A first port number may be associated with the first protocol processing stack and a second port number may be associated with the second protocol processing stack. The mapper may store a correspondence between the first port number and the second port number.