一.交叉編譯內(nèi)核
make menuconfig -> Device Drivers -> Network device support -> PPP (point-to-point protocol) 中，選中所有ppp選項(xiàng)。退出，保存配置，修改Makefile重新執(zhí)行make zImage. 將arch/mips/boot/下的zImage下載到開發(fā)板上重啟系統(tǒng)。
二.交叉編譯pppoe server
下載ppp-2.4.5.tar.gz 、rp-pppoe-3.10.tar.gz 在 /opt 目錄下。
tar -zxvf ppp-2.4.5.tar.gz
cd ppp-2.4.5
[root@root ppp-2.4.5 ]# ./configure CC=mipsel-linux-gcc AR=mipsel-linux-ar BANLIB=mipsel-linux-ranlib --host=mipsel
-------------------------------------------------------------------------
Configuring for Linux
Creating Makefiles.
Makefile <= linux/Makefile.top
pppd/Makefile <= pppd/Makefile.linux
pppstats/Makefile <= pppstats/Makefile.linux
chat/Makefile <= chat/Makefile.linux
pppdump/Makefile <= pppdump/Makefile.linux
pppd/plugins/Makefile <= pppd/plugins/Makefile.linux
pppd/plugins/rp-pppoe/Makefile <= pppd/plugins/rp-pppoe/Makefile.linux
pppd/plugins/radius/Makefile <= pppd/plugins/radius/Makefile.linux
pppd/plugins/pppoatm/Makefile <= pppd/plugins/pppoatm/Makefile.linux
pppd/plugins/pppol2tp/Makefile <= pppd/plugins/pppol2tp/Makefile.linux
-------------------------------------------------------------------------
再直接 make CC=mipsel-linux-gcc
編譯成功后在pppd目錄下會生成pppd把這文件拷貝到usr/sbin目錄下。
cd /opt
tar -zxvf rp-pppoe-3.10.tar.gz
cd rp-pppoe-3.10/src
[root@root src]# ./configure CC=mipsel-linux-gcc AR=mipsel-linux-ar BANLIB=mipsel-linux-ranlib --host=mipsel
-------------------------------------------------------------------------
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether /opt/crosstool/mipsel-linux/bin/mipsel-linux-gcc accepts -g... yes
checking for /opt/crosstool/mipsel-linux/bin/mipsel-linux-gcc option to accept ISO C89... none needed
checking for mipsel-ranlib... no
checking for ranlib... ranlib
configure: WARNING: using cross tools not prefixed with host triplet
checking how to run the C preprocessor... /opt/crosstool/mipsel-linux/bin/mipsel-linux-gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/wait.h that is POSIX.1 compatible... yes
checking for Linux 2.4 kernel-mode PPPoE support... cross-compiling, default:
no
checking packing order of bit fields... no defaults for cross-compiling
-------------------------------------------------------------------------
解決方法：進(jìn)入src下直接./configure,然后修改下面的makefile和libevent下的makefile,gcc為mipsel-linux-gcc
直接 make
編譯成功后configs目錄下是rp-pppoe所需的配置文件，把這些文件全部復(fù)制到目標(biāo)機(jī)的/etc/ppp目錄下(沒有就自己建一個)。
src目錄下會產(chǎn)生pppoe，pppoe-server，pppoe-sniff，pppoe-relay。把這些程序下載到目標(biāo)機(jī)/usr/sbin目錄下。
三.配置
1)rp-pppoe-3.10/configs目錄下是rp-pppoe所需的配置文件，把這些文件全部復(fù)制到目標(biāo)機(jī)的/etc/ppp目錄下(沒有就自己建一個)。
2)撥號相關(guān)的腳本程序共有6個，在rp-pppoe-3.10/scripts中。
pppoe-setup：配置程序，把輸入的帳號密碼等信息存入配置文件。
pppoe-start：撥號程序，連接網(wǎng)絡(luò)。
pppoe-stop：斷開。
pppoe-status：查看連接狀態(tài)。
pppoe-connect：連接網(wǎng)絡(luò)，被pppoe-start所調(diào)用。
pppoe-init：初始化，被其他程序調(diào)用。
把這些腳本也放到/usr/sbin目錄下。
四.測試
./pppoe-setup (下面是一些說明供參考）
>> Enter your PPPoE user name: ——此處輸入撥號帳號的用戶名
>> Enter the Ethernet interface connected to the ADSL modem For Solaris, this is likely to be something like /dev/hme0. For Linux, it will be ethn, where n is a number. (default eth0): ——輸eth0(視情況而定)
>> Enter the demand value (default no): ——輸no
>> Enter the DNS information here: ——輸IP(eg:69.45.45.34)（視當(dāng)?shù)剡\(yùn)營商的DNS服務(wù)器IP而定）
>> Please enter your PPPoE password: ——輸網(wǎng)通用戶口令
>> Choose a type of firewall (0-2): ——輸0 (0為不要防火墻)
>> Accept these settings and adjust configuration files (y/n)? ——輸y
執(zhí)行pppoe-start后。如果這個時候就使用pppoe-start開始連接的話，很大情況下你會得到timeout的提示，那我們該怎么做呢？需要在dev目錄下創(chuàng)建一個pts的文件夾，進(jìn)入pts，創(chuàng)建節(jié)點(diǎn)mknod 0 c 136 0; mknod 1 c 136 1。每次鏈接都需要建立，蠻麻煩的吧，所以還是把這幾條指令寫進(jìn)啟動腳本吧。相信這樣的話，一般您都會得到一個connected!的提示，說明ADSL已撥號成功,可以ping 下baidu看通不。
五.修改腳本
為了方便不用pppoe-setup,自己寫一個腳本pppoe.sh為傳參形式,把參數(shù)寫入到指定的文件內(nèi) 例如:
[root@root scripts]# ./pppoe.sh pppoe-name eth3 pppoe-passwd
#!/bin/sh
U="$1"
E="$2"
PWD1="$3"
PPPD="/usr/sbin/pppd"
CONFIG="/etc/ppp/pppoe.conf"
if [ ! -r "$CONFIG" ] ; then
echo "Oh, dear, I don't see the file '$CONFIG' anywhere. Please"
echo "re-install the PPPoE client."
exit 1
fi
# Must have pppd
if [ ! -x $PPPD ] ; then
echo "Oops, I can't execute the program '$PPPD'. You"
echo "must install the PPP software suite, version 2.3.10 or later."
exit 1
fi
sed -i "s/USER=.*/USER=$U/" $CONFIG
sed -i "s/ETH=.*/ETH=$E/" $CONFIG
sed -i "s/FIREWALL=.*/FIREWALL=NONE/" $CONFIG
sed -i "s/DNSTYPE=.*/DNSTYPE=SERVER/" $CONFIG
sed -i "s/PIDFILE=.*/PIDFILE=/var/run/pppoe-$E.pid/" $CONFIG
sed -i "s/DEMAND=.*/DEMAND=no/" $CONFIG
sed -i "s/DNS1=.*/DNS1=""/" $CONFIG
sed -i "s/DNS2=.*/DNS2=""/" $CONFIG
sed -i "s/PEERDNS=.*/PEERDNS=yes/" $CONFIG
cp $CONFIG $CONFIG-bak
if [ -r /etc/ppp/pap-secrets ] ; then
cp /etc/ppp/pap-secrets /etc/ppp/pap-secrets-bak
else
cp /dev/null /etc/ppp/pap-secrets-bak
fi
if [ -r /etc/ppp/chap-secrets ] ; then
cp /etc/ppp/chap-secrets /etc/ppp/chap-secrets-bak
else
cp /dev/null /etc/ppp/chap-secrets-bak
fi
egrep -v "^$U|^\"$U\"" /etc/ppp/pap-secrets-bak > /etc/ppp/pap-secrets
echo "\"$U\" * \"$PWD1\"" >> /etc/ppp/pap-secrets
egrep -v "^$U|^\"$U\"" /etc/ppp/chap-secrets-bak > /etc/ppp/chap-secrets
echo "\"$U\" * \"$PWD1\"" >> /etc/ppp/chap-secrets
[root@root scripts]#/usr/sbin/pppoe-connect /etc/ppp/pppoe.conf
Using interface ppp0
Connect: ppp0 <--> /dev/pts/13
Warning - secret file /etc/ppp/chap-secrets has world and/or group access
CHAP authentication succeeded: Access granted
CHAP authentication succeeded
local IP address 192.168.2.2
remote IP address 192.168.2.1
primary DNS address 8.8.8.8
secondary DNS address 4.4.4.4
[root@root scripts]#/usr/sbin/pppoe-status
pppoe-status: Link is up and running on interface ppp0
ppp0 Link encap:Point-to-Point Protocol
inet addr:192.168.2.2 P-t-P:192.168.2.1 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:7 errors:0 dropped:0 overruns:0 frame:0
TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:61 (61.0 B) TX bytes:1447 (1.4 KiB)
[root@root scripts]#route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
0.0.0.0 192.168.2.1 0.0.0.0 UG 0 0 0 ppp0
-----------------------------------------------------------------------
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