| 摘要 |
A network system includes: a first network; an authentication server; a second network; a network; and a packet forwarding apparatus, wherein the packet forwarding apparatus includes: a forwarding route table storage storing a first forwarding route table containing packet routing information to the second network, and a second forwarding route table containing packet routing information to the second network and the third network; and a forwarding route table selector that, prior to determination of successful authentication for the terminal apparatus, selects the first forwarding route table as a search forwarding route table, and that upon receipt of determination of successful authentication for the terminal apparatus, selects the second forwarding route table as the search forwarding route table.
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