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Source publication
The growth of IPv4 Internet has been facing the infamous IP address depletion barrier. In practice, typical IPv4 Internet edge networks can be expanded by incorporating private addresses and NAT devices.
In this paper, major limitations of NAT-expanded private networks are presented. Furthermore, a solution is proposed to encourage the mixed usage...
Contexts in source publication
Context 1
... each other as neighbors having the same broadcast do- main. Therefore, they will try to reach directly by resolving their MAC addresses through ARP. If they are placed in the same L2 segment, they can directly route to each other without any intervention by other routers or NATs. An example of a super-subnet organization is illustrated in Fig. 2. In the super-subnet organization, the edge router is designated as the default router for the public hosts. And the NAT is assigned as the default gateway for the private hosts. No additional configurations are required in a ...
Context 2
... a private host as A in Fig. 2 wants to communicate with the global Internet hosts, its address should be translated into a public one by a NAT. Because the super-subnet organization removes the logical boundary between each premises network, a single NAT server is sufficient to serve all the private hosts within the edge network. Such a shared NAT is illustrated in ...
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