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This customs is called on nearby host-to-host protocols in an internet environment. This formality calls on county network protocols to carry
the internet datagram to the next gateway or journey's end host and some user agent string analysis.
The internet modules avail oneself of fields in the internet header to fragment and
reassemble internet datagrams when necessary for the treatment of transmittal entirely
"small pretty penny" networks.
The model of action is that an internet module resides in each herd engaged in internet communication and in each gateway that interconnects networks. These modules share common rules on
interpreting address fields and since fragmenting and assembling internet datagrams. In combining, these modules (conspicuously in gateways) have procedures representing making routing decisions and other functions.
The internet module determines that the datagram is in place of an appositeness program in this host. It passes the data to the claim program in response to a routine call, zeal the provenance
address and other parameters as results of the call.