Moxa Technologies UC-7420/7410 user manual Ifs=‘

UC-7420/7410 User’s Manual	Managing Communication
fi
i=`expr $i + 1`
read f1 f2
case “$f1” in
address ) IPADDR=$f2
;;
netmask ) NETMASK=$f2
;;
broadcast ) BROADCAST=$f2
;;
esac
done
break
fi
done < /etc/network/interfaces
}
# get the ip address of the specified interface
mname=
module_up()
{
oIFS=$IFS
IFS=‘
‘
FOUND=“no”
for LINE in `lsmod`
do
TOK=`echo $LINE cut -d’ ‘ -f1`
if [ “$TOK” = “$mname” ]; then
FOUND=“yes”;
break;
fi
done
IFS=$oIFS
if [ “$FOUND” = “no” ]; then
modprobe $mname
fi
}
start()
{
ifcfg_vpn
if [ ! \( -d “/dev/net” \) ]; then
mkdir /dev/net
fi

if [ ! \( -r “/dev/net/tun” \) ]; then

#create a device file if there is none mknod /dev/net/tun c 10 200

fi

#load modules “tun” and “bridge” mname=tun

module_up mname=bridge module_up

#create an ethernet bridge to connect tap devices, internal interface brctl addbr br0

brctl addif br0 $iface

#the bridge receives data from any port and forwards it to other ports.

i=`expr 0` while : do

#generate a tap0 interface on tun openvpn --mktun --dev tap${i}

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