| http://www.w3.org/ns/prov#value | - For example, a method can be used in which each router manages information on the types of router (Ri, Rb or Ro) for each domain address in the network, and the router determines the type of the router by checking the domain address of the received packet on the basis of the management information. [0106] In the above-mentioned example, the host that receives the packet is a fixed machine such as
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