ELSA LANCOM Business 6000, Руководство пользователя

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Technical basics
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ELSA LANCOM Business 6000
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EN
simultaneously through the same LAN without conflicts (this is why a LAN is
called multiprotocol-capable).
To an IP host, a LAN behaves as if it were an independent network with a
router. The hosts gives the packets to the LAN which handles the further
distribution of the data packet. This is why only IP addresses from the
numerical space of the specific network should be used for the internal
communication of the hosts through the IP protocol.
To a router in the LAN, a host in its own LAN seems to be located behind
another router. So the task for the router is very simple: all it has to know for
operating in the IP network are the IP addresses
of the directly connected hosts and
of the available networks and subnets,
i.e. all it has to remember is the network address and the netmask of the
subnet in the LAN.
In contrast, the host is confronted with a more difficult task than the router.
In case of an interface with a point-to-point cable, the host knows that all
packets that it sends through the interface automatically arrive at its router,
IP host
in the LAN
LAN with router function: distributes
the LAN packets
IP host
in the LAN
IP host
in the LAN
IP host
in the LAN
LAN with router function
IP host
in the LAN
The router in the LAN:
knows only the address of
the LAN