2002-10-20 15:13:14 +00:00
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lwIP is a small independent implementation of the TCP/IP protocol
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suite that has been developed by Adam Dunkels at the Computer and
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Networks Architectures (CNA) lab at the Swedish Institute of Computer
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Science (SICS).
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The focus of the lwIP TCP/IP implementation is to reduce the RAM usage
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while still having a full scale TCP. This making lwIP suitable for use
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in embedded systems with tenths of kilobytes of free RAM and room for
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around 40 kilobytes of code ROM.
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lwIP features:
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* IP (Internet Protocol) including packet forwarding over multiple
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network interfaces
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* ICMP (Internet Control Message Protocol) for network maintenance
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and debugging
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* UDP (User Datagram Protocol) including experimental UDP-lite
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extensions
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* TCP (Transmission Control Protocol) with congestion control, RTT
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estimation and fast recovery/fast retransmit
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* Specialized API for enhanced performance
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* Optional Berkeley socket API
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lwIP is freely available under a BSD license.
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lwIP has grown into an excellent TCP/IP stack for embedded devices,
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and developers using the stack often submit bug fixes, improvements,
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and additions to the stack to further increase its usefulness.
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Development of lwIP is hosted on Savannah, a central point for
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software development, maintenance and distribution. A core team
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will improve lwIP by the use of Savannah's interface and CVS.
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The current lwIP CVS tree can be checked out by doing:
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cvs -d:pserver:anoncvs@subversions.gnu.org:/cvsroot/lwip login
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cvs -z3 -d:pserver:anoncvs@subversions.gnu.org:/cvsroot/lwip co lwip
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Last night's CVS tar ball can be downloaded from:
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http://savannah.gnu.org/cvs.backups/lwip.tar.gz
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2002-10-20 15:24:36 +00:00
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The current CVS tree is web-browsable:
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http://savannah.nongnu.org/cgi-bin/viewcvs/lwip/lwip/
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2002-10-20 15:13:14 +00:00
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Submit patches and bugs via the lwIP project page:
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http://savannah.nongnu.org/projects/lwip/
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Stable releases have not been released yet. For development we
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suggest downloading the latest CVS and keeping track of the
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lwIP mailing list.
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2002-10-22 23:42:17 +00:00
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The mailing list (with searchable archives), as well as Adam
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Dunkels' papers on lwIP are at the official lwIP home page:
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2002-10-20 15:13:14 +00:00
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http://www.sics.se/~adam/lwip/
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2002-10-22 23:42:17 +00:00
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Reading Adam's papers and browsing the mailing list archives
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2002-10-20 15:13:14 +00:00
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is a good way to become familiar with the design of lwIP.
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Adam Dunkels <adam@sics.se>
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Leon Woestenberg <leon.woestenberg@gmx.net>
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