The existing local IP and address resolution protocols dictate the following functional entities for local IP and address resolution: the Basic IP Node, which could be a wireless terminal capable of moving from one network to another, or a router or conguration server acting as a simple IP node; the Access Router, the last hop router for the wireless terminal; a Local Server, which provides conguration information to the wireless terminal.
Note that access routers and local servers must support certain
Basic IP Node functions in addition to their own functions, since they act as basic when communicating with other or conguring their own local subnet information.
The sections below describe the functions associated with these functional entities.
Figure 5.4 illustrates the functional architecture of the local IP and address resolution security system. Only network interfaces are shown. Programmatic interfaces may exist between the security functions and the communication functions, credential storage and generation, or for other functions depending on implementation.
The interfaces here are between functional entities. In an actual implementation, both the access router and DHCP server also support BN1. This is because both entities must support address resolution and, in IPv6, address autoconguration and duplicate address detection, just like any other IP node on the subnet. Note also that there is no interface between specically for credential exchange. Depending on the actual security protocol, credential exchange may be necessary, but this can be included with the actual
The existing local IP and address resolution protocols dictate the following functional entities for local IP and address resolution: the Basic IP Node, which could be a wireless terminal capable of moving from one network to another, or a router or conguration server acting as a simple IP node; the Access Router, the last hop router for the wireless terminal; a Local Server, which provides conguration information to the wireless terminal.
Note that access routers and local servers must support certain
Basic IP Node functions in addition to their own functions, since they act as basic when communicating with other or conguring their own local subnet information.
The sections below describe the functions associated with these functional entities.
Figure 5.4 illustrates the functional architecture of the local IP and address resolution security system. Only network interfaces are shown. Programmatic interfaces may exist between the security functions and the communication functions, credential storage and generation, or for other functions depending on implementation.
The interfaces here are between functional entities. In an actual implementation, both the access router and DHCP server also support BN1. This is because both entities must support address resolution and, in IPv6, address autoconguration and duplicate address detection, just like any other IP node on the subnet. Note also that there is no interface between specically for credential exchange. Depending on the actual security protocol, credential exchange may be necessary, but this can be included with the actual
access point vs router
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