Hi3559AV100移植友方4G模块N720V5（二）
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2.2 拨号脚本
4G模块拨号脚本一共分为3个，当然网上例程也有很多了，不过笔者在这里愿意再分享下这3个文件。
neoway-pppd-mobile
# Hide password in debug messages
hide-password
# The phone is not required to authenticate
noauth
# The chat script (be sure to edit that file,too!)
connect '/usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-connect-mobile'
# The close script(be sure to edit that file,too!)
disconnect '/usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-disconnect-mobile'
# Debug info from pppd
debug
# Modem path, like /dev/ttyUSB0, /dev/ttyACM0, depend on your module, default path is /dev/ttyUSB3
/dev/ttyACM2
# Serial port line speed
115200
# If you want to use the link as your gateway
defaultroute
# pppd must not propose any IP address to the peer
noipdefault
# No ppp compression
novj
novjccomp
noccp
ipcp-accept-local
ipcp-accept-remote
local
# For sanity, keep a lock on the serial line
lock
dump
# Keep pppd attached to the terminal
# Comment this to get daemon mode pppd
nodetach
# insert here the correct username and password for authentication
user "gsm"
password "1234"
# Hardware flow control
#crtscts
remotename 3gppp
ipparam 3gppp
# Ask the peer for up to 2 DNS server addresses
usepeerdnsneoway-chat-connect-mobile
TIMEOUT 5
ABORT "BUSY"
ABORT "DELAYED"
ABORT "ERROR"
ABORT "NO DIALTONE"
ABORT "NO CARRIER"
#"AT
TIMEOUT 5
''AT
OK AT+CSQ
OK AT+CGDCONT=1,"IP","cmnet"
OK ATDT*99#
CONNECT ''
neoway-chat-disconnect-mobile
ABORT "ERROR"
ABORT "NO DIALTONE"
SAY "\nSending break to the modem\n"
""+++
""+++
""+++
SAY "\nGood bye!\n"
将这3个文件放在指定路径下，一般都是放在/etc/ppp/peers/下，笔者的环境特殊一些，放在了/usr/local/tools/etc/ppp/peers/下。当然，事先要创建好指定的存放路径。
之后进入上边的指定路径，在终端下运行以下命令：
/usr/local/tools/etc/ppp/peers # pppd file neoway-pppd-mobile
就可以映射出ppp0设备，并且上网了。log如下所示：
/usr/local/tools/etc/ppp/peers # pppd file neoway-pppd-mobile
pppd options in effect:
debug # (from neoway-pppd-mobile)
nodetach # (from neoway-pppd-mobile)
dump # (from neoway-pppd-mobile)
noauth # (from neoway-pppd-mobile)
user gsm # (from neoway-pppd-mobile)
password ?????? # (from neoway-pppd-mobile)
remotename 3gppp # (from neoway-pppd-mobile)
/dev/ttyACM2 # (from neoway-pppd-mobile)
115200 # (from neoway-pppd-mobile)
lock # (from neoway-pppd-mobile)
connect /usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-connect-mobile # (from neoway-pppd-mobile)
disconnect /usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-disconnect-mobile # (from neoway-pppd-mobile)
local # (from neoway-pppd-mobile)
hide-password # (from neoway-pppd-mobile)
novj # (from neoway-pppd-mobile)
novjccomp # (from neoway-pppd-mobile)
ipcp-accept-local # (from neoway-pppd-mobile)
ipcp-accept-remote # (from neoway-pppd-mobile)
ipparam 3gppp # (from neoway-pppd-mobile)
noipdefault # (from neoway-pppd-mobile)
defaultroute # (from neoway-pppd-mobile)
usepeerdns # (from neoway-pppd-mobile)
noccp # (from neoway-pppd-mobile)
timeout set to 5 seconds
abort on (BUSY)
abort on (DELAYED)
abort on (ERROR)
abort on (NO DIALTONE)
abort on (NO CARRIER)
timeout set to 5 seconds
send (AT^M)
expect (OK)
^M
OK
-- got it
send (AT+CSQ^M)
expect (OK)
^M
^M
+CSQ: 27,99^M
OK
-- got it
send (AT+CGDCONT=1,"IP","cmnet"^M)
expect (OK)
^M
^M
OK
-- got it
send (ATDT*99#^M)
expect (CONNECT)
^M
^M
CONNECT
-- got it
send (^M)
Script /usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-connect-mobile finished (pid 5138), status = 0x0
Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyACM2
sent [LCP ConfReq id=0x1
rcvd [LCP ConfReq id=0x1
sent [LCP ConfAck id=0x1
rcvd [LCP ConfAck id=0x1
sent [PAP AuthReq id=0x1 user="gsm" password=
rcvd [PAP AuthAck id=0x1 "" 00]
PAP authentication succeeded
sent [IPCP ConfReq id=0x1
rcvd [IPCP ConfReq id=0x2]
sent [IPCP ConfNak id=0x2
rcvd [IPCP ConfNak id=0x1
sent [IPCP ConfReq id=0x2
rcvd [IPCP ConfReq id=0x3]
sent [IPCP ConfAck id=0x3]
rcvd [IPCP ConfAck id=0x2
Could not determine remote IP address: defaulting to 10.64.64.64
Failed to create /etc/ppp/resolv.conf: No such file or directory
not replacing existing default route via 10.58.122.1
local IP address 10.25.19.67
remote IP address 10.64.64.64
primary DNS address 221.179.155.193
secondary DNS address 221.179.155.209
这样，基于Hi3559AV100的友方4G模块移植圆满成功了！！！
但是，尚有以下几点需要注意：
1. neoway-pppd-mobile脚本中有几处需要视具体情况而改变，改为自己实际的（见下边红色字体）：
1)
# The chat script (be sure to edit that file,too!)
connect '/usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-connect-mobile'
2）
# The close script(be sure to edit that file,too!)
disconnect '/usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-disconnect-mobile'
3）
# Modem path, like /dev/ttyUSB0, /dev/ttyACM0, depend on your module, default path is /dev/ttyUSB3
/dev/ttyACM2
4）
# Serial port line speed
115200
2. 3个脚本在编辑时，格式要设置为Unix(LF)格式，千万不要设置成windows(CR LF)格式！！！否则会出现始终报错的问题，如下所示：
/usr/local/tools/etc/ppp/peers # pppd file neoway-pppd-mobile
pppd options in effect:
debug # (from neoway-pppd-mobile)
nodetach # (from neoway-pppd-mobile)
dump # (from neoway-pppd-mobile)
noauth # (from neoway-pppd-mobile)
user gsm # (from neoway-pppd-mobile)
password ?????? # (from neoway-pppd-mobile)
remotename 3gppp # (from neoway-pppd-mobile)
/dev/ttyACM2 # (from neoway-pppd-mobile)
115200 # (from neoway-pppd-mobile)
lock # (from neoway-pppd-mobile)
connect /usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-connect-mobile # (from neoway-pppd-mobile)
disconnect /usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-disconnect-mobile # (from neoway-pppd-mobile)
local # (from neoway-pppd-mobile)
hide-password # (from neoway-pppd-mobile)
novj # (from neoway-pppd-mobile)
novjccomp # (from neoway-pppd-mobile)
ipcp-accept-local # (from neoway-pppd-mobile)
ipcp-accept-remote # (from neoway-pppd-mobile)
ipparam 3gppp # (from neoway-pppd-mobile)
noipdefault # (from neoway-pppd-mobile)
defaultroute # (from neoway-pppd-mobile)
usepeerdns # (from neoway-pppd-mobile)
noccp # (from neoway-pppd-mobile)
timeout set to 5 seconds
abort on (BUSY)
expect (^M)
alarm
Failed
Script /usr/local/tools/bin/chat -s -v -f /usr/local/tools/etc/ppp/peers/neoway-chat-connect-mobile finished (pid 8560), status = 0x3
Connect script failed
3. 拨号前要确保/etc/ppp/文件夹存在（如不存在需要手动创建），否则会报错，如下所示：
Could not determine remote IP address: defaulting to 10.64.64.64
Failed to create /etc/ppp/resolv.conf: No such file or directory
not replacing existing default route via 10.58.122.1
4. 拨号成功后，直接ping www.baidu.com 查看实际是否能够上网。如果ping不通，需要修改设置，终端输入：route add default ppp0，默认设置路由出去的不一定是 ppp0。
5. 如果可以ping通百度的ip，但不能ping通www,baidu.com，需要执行以下命令：
cp –f /etc/ppp/resolv.conf /etc/resolv.com
6. 如果pppd file neoway-pppd-mobile后边不加&，则Ctrl+C时调用chat-disconnect脚本；如果带上&，即后台运行，则当kill运行此命令的进程时，chat-disconnect脚本调用。