So-Net撥接固定IP有時侯會撥到別的IP,此Script是判斷如果IP不是原本那個，就再重撥.
#!/bin/bash
checkip=`/sbin/ifconfig ppp0 grep 'inet addr' sed 's/^.*addr://g' | sed 's/ P-t-P.*$//g'`
if [ "$checkip" != "你的固定IP" ];
then
/usr/sbin/pppoe-stop
#!/bin/bash
checkip=`/sbin/ifconfig ppp0 grep 'inet addr' sed 's/^.*addr://g' | sed 's/ P-t-P.*$//g'`
if [ "$checkip" != "你的固定IP" ];
then
/usr/sbin/pppoe-stop
