Something

#!/bin/bash
 
USERNAME="$1"
IFACE="$2"
#PPTPS=cable.netvision.net.il
PPTPS=212.143.205.227
NEWDNS=194.90.1.5
PPPD_OPTIONS=""
PPTP_OPTIONS=""
 
#ifdown $IFACE
#ifup $IFACE
 
#pppd call provider $PPPD_OPTIONS pty "/usr/bin/pptp $PPTPS --nolaunchpppd $PPTP_OPTIONS
#pptp $PPTPS debug name cananian remotename ntdialup 172.18.0.2:172.18.0.3 # for example only!
 
/usr/sbin/pppoe-connect
 
    NVGW=$(ping -c 3 -w 3 $PPTPS | head -n 1 | cut -d" " -f3 | cut -d"(" -f2 | cut -d")" -f1)
    CABLEGW=$(route -n | grep 0.0.0.0 | cut -d" " -f10 | tail -1)
 
route add -host $NVGW gw $CABLEGW dev $IFACE
 
/usr/bin/pptp $NVGW debug user $USERNAME mtu 1380 mru 1380 defaultroute persist nobsdcomp usepeerdns
 
sleep 6
 
    NEWGW=$(ifconfig ppp0 | grep inet | cut -d":" -f3 | tail -1 | cut -d" " -f1)
 
route add default gw $NEWGW
route del default gw $CABLEGW
 
echo nameserver $NEWDNS > /etc/resolv.conf