Solution to Ubuntu libpcap Installation Problems

The libpcap library is successfully installed only when the pcap. h file cannot be found during libpcap library programming in Ubuntu 11.10. However, tcpdump is successfully installed. "tcpdump indicates that the user name is resolved to the BPF command by The libpcap database. Isn't tcpdump saved? After a while, Google found a blog post about spring water flowing to the east and solved the problem. The link is as follows:

Http://www.cnblogs.com/lynch_world/archive/2011/08/31/2160678.html

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The environment is ubuntu10.1020.libpcap-1.1.1.tar.gz.

1. Download libpcap

The official website of libpcap is

2. Decompress

Tar zxvf libpcap-1.1.1.tar.gz

3. Configuration

Switch to the near libpcap unzipping directory libpcap-1.1.1 and use the configure configuration command to generate the MAKEFILE file.

./Configure

In this step, the flex package may be missing:

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configure: error: Your operatingsystem's lex is insufficient to compile libpcap.  flex is a lex replacement that has many advantages, including being able to compile libpcap.  For more information, see http://www.gnu.org/software/flex/flex.html .

Solution:

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sudo apt-get install flex

　　

4. Compile

Make

YACC errors may occur:

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yacc -d ./parse.y<br>make: yacc: Command not found<br>make: *** [parse.c] Error 127

Solution:

　

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sudo apt-get install -y byacc

5. Installation

Sudo make install

Note: you must add sudo. Otherwise, permission issues may occur.