FIELD: information technology.
SUBSTANCE: server has a generic routing encapsulation (GRE) tunnel function and includes a selecting means to select any one of a layer 3 transferring method and a layer 2 transferring method, which designates a direct interface to carry out transferring, as a transferring method in the case that GRE tunnel encapsulation is carried out, and to select said layer 2 transferring method if both said transferring methods are available.
EFFECT: avoiding problems of shortage of IP addresses.
10 cl, 8 dwg
Authors
Dates
2012-09-10—Published
2010-05-26—Filed