/etc/network/interfaces

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 10.181.200.70
netmask 255.255.255.224
gateway 10.181.200.65

auto eth0:1
iface eth0:1 inet static
address 192.168.56.1
netmask 255.255.255.0

/etc/ppp/ip-up

route add -host vpn.insit.ru gw 10.181.200.65
route del default
route add default dev ppp0

/etc/ppp/ip-down

route add default gw 10.181.200.65

/etc/ppp/peers/insit

pty "pptp vpn.insit.ru --nolaunchpppd"
user INANLIM8105
password ********
nodeflate
nobsdcomp
noauth
defaultroute

/usr/bin/vpn

while true
do
if ping -c 5 -s 1 8.8.8.8 >> /dev/null
then
echo OK >> /dev/null
else
poff insit | sleep 2 && pon insit
echo `date +"%A, %d %B %Y года, %r - Разрыв связи"` >> /var/log/vpn
fi
sleep 1
done