1. 下载源码包http://igorpopov.newmail.ru/pppd/download.html或者http://www.sfr-fresh.com/linux/misc/ppp-2.4.4.tar.gz/下载ppp-2.4.4.tar.gz
http://sourceforge.net/projects/libpcap/或者http://www.tcpdump.org/下载libpcap-0.9.8.tar.gz
2. 编译libpcapcd /roottar xzvf libpcap-0.9.8.tar.gzcd libpcap-0.9.8./configure --host=arm-linux --with-pcapmake得到libpcap.a
3. 编译pppdcd /roottar xzvf ppp-2.4.4.tar.gzcd ppp-2.4.4./configure --host=arm-linux vi pppd/Makefile
LIBS += -lpcapCFLAGS += -DPPP_FILTER改为LIBS += -lpcap -L../../libpcap-0.9.8CFLAGS += -DPPP_FILTER -I../../libpcap-0.9.8
make CC=arm-linux-gcc
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