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48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
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This directory contains an example of how a project using lwIP might
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look. It is also the development platform of lwIP, since it can be run
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as a user process under FreeBSD or Linux. There are also a number of
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example applications (including a simple web server) in the apps/
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directory.
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Some short instructions on how to build and run lwIP on a FreeBSD or
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Linux host. For FreeBSD, the tap interface must be enabled in the
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kernel configuration and the kernel must be recompiled. The tap
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interface is enabled by adding the line "pseudo-device tap" in the
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kernel configuration. See Chapter 9 in the FreeBSD handbook for
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instructions on how to build a custom FreeBSD kernel.
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* Compile the code. This must be done by using GNU Make. Under
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FreeBSD, GNU Make can be found in the ports collection under
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/usr/ports/devel/gmake (type "make install distclean" to
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install). Under Linux, GNU Make is the default "make".
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> gmake (FreeBSD)
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> make (Linux)
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* The compilation process produces the executable file "simhost". To
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run this, you have to be root.
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> su (Type password for the root account)
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# ./simhost
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* The lwIP TCP/IP stack is now running with IP address
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192.168.0.2. Some things that you can try:
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To see the packets that are going to and from the lwIP stack, run
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tcpdump:
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# tcpdump -l -n -i tap0
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You can ping lwIP:
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> ping 192.168.0.2
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For a telnet shell, run:
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> telnet 192.168.0.2
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Finally, "simhost" also includes a simple web server; the URL is
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of course http://192.168.0.2/.
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