The IP layer of the Modtronix TCP/IP Stack is implemented by the file "ip.c". The header file "ip.h" defines the services provided by the layer. In this architecture, the IP layer is passive; it does not respond to IP data packets. Instead, higher level layers use IP primitives and fetch the IP packet, interpret it and take appropriate action.
The IP specification requires that the local host generate a unique packet identifier for each packet transmitted by it. The identifier allows remote host to identify duplicate packets and discard them. The Modtronix TCP/IP Stack'ss IP layer maintains a private 16-bit variable to track packet identifiers.
For details on configuring this module, see Configuration section of ip.h file.
| ||IP Module for Modtronix TCP/IP Stack. |
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