#!/bin/sh

# Load linux kernel modules
# For gsm serial console on /dev/ttyUSBx
modprobe -v option
# For Huawei CDC NCM ether card
modprobe -v huawei_cdc_ncm
usb_modeswitch -v 0x12d1 -p 0x14fe -V 0x12d1 -P 0x1506 -J
sleep 5
# TODO need to wait that /dev/ttyUSB0 to be created
echo -ne "AT^NDISDUP=1,1,\"sl2sfr\"\r\n" > /dev/ttyUSB0
sleep 3
# TODO need to wait until CONNECTED with 4G network
udhcpc -i wwan0
iptables -t nat -A POSTROUTING -o wwan0 -j MASQUERADE
iptables -A FORWARD -i br0 -j ACCEPT
iptables -t mangle -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu