ADSL动态地址的获取

这是一个获得动态IP地址的脚本。在FreeBSD中测试成功。

其中dip.sh是获取tun0上绑定的地址的脚本，而ftpfile.sh是将地址传到FTP服务器上。
 
++++++++++++++++++++dip.sh++++++++++++++++++
#!/bin/sh
gw_ipaddr="192.168.0.1"
while true ;do
	sleep 150
   	cgw_ipaddr=$(ifconfig tun0|grep inet|cut -d ' ' -f 2)
   	if [ "$gw_ipaddr" = "$cgw_ipaddr" ]; then 
        	sleep 150
   	else 
        	set gw_ipaddr
        	gw_ipaddr="$cgw_ipaddr"
        	ctime=$(date "+%Y/%m/%d  %H:%M:%S")
        	echo GW IPaddr[$ctime] : $gw_ipaddr .>>./tmpdata
       		./ftpfile.sh
       		rm tmpdata 
   	fi
done
+++++++++++++++++++++++++++++++++++++++++
 

++++++++++++++++++ftpfile.sh++++++++++++++++

#!/bin/sh
ftp -n << !
open FTPServerIP
user USERNAME PASASWD
binary
prompt off
put ./tmpdata gwIP.txt
close
bye
!
+++++++++++++++++++++++++++++++++++++++++