3G Modem典型配置

3G Modem特性典型配置案例
DHCP配置举例
1.1 组网需求
AR1910通过固定口连接到Internet，通过3G Modem通过3G网络连接到Internet。

图 1 同一子网内动态地址分配组网图
3G Modem的普通DCC拨号应用
1. 配置信息
#
acl number 3000
rule 0 permit ip
#
dns resolve
dns proxy enable
dns server 221.130.33.60
dns server 221.130.33.52
#
interface Cellular0/0
nat outbound 3000
async mode protocol
link-protocol ppp
ppp ipcp dns request
ip address ppp-negotiate
dialer enable-circular
dialer-group 1
dialer timer idle 60
dialer number *99#
#
ip route-static 0.0.0.0 0.0.0.0 Cellular0/0
#
dialer-rule 1 ip permit
#
user-interface tty 1
modem both
#
2. 主要配置步骤
1) 配置感兴趣流量
[H3C]dialer-rule 1 ip permit
2) 配置modem允许呼出
[H3C]user-interface tty 0
[H3C-ui-tty0] modem both
3) 配置cellular接口的拨号功能与NAT功能
[H3C]interface Cellular0/0
[H3C-Cellular0/0]async mode protocol
[H3C-Cellular0/0]ip address ppp-negotiate
[H3C-Cellular0/0]ppp ipcp dns request
[H3C-Cellular0/0]dialer enable-circular
[H3C-Cellular0/0]dialer-group 1
[H3C-Cellular0/0]dialer timer idle 60
[H3C-Cellular0/0]dialer number *99#
4) 配置本地DNS解析与DNS代理功能
[H3C]dns resolve
[H3C]dns proxy enable
[H3C]dns server 221.130.33.60
[H3C]dns server 221.130.33.52
5) 配置ACL，并在Cellular接口上启用NAT
[H3C]acl number 3000
[H3C-acl-adv-3000]rule 0 permit ip
[H3C-acl-adv-3000]interface Cellular0/0
[H3C-Cellular0/0]nat outbound 3000
6) 配置静态路由
[H3C]ip route-static 0.0.0.0 0.0.0.0 Cellular0/0
3. 验证步骤
1) 查看3G Modem的状态信息
<H3C>dis ce 0/0 all
Modem State:
Hardware Information
====================
Modem Firmware Version = 11.304.17.00.00
Hardware Version = CD96TCPU
International Mobile Subscriber Identity (IMSI) = 460020263407632
International Mobile Equipment Identity (IMEI) = 359298019050464
Factory Serial Number (FSN) = EV5TAB2842800069
Modem Status = Online
Profile Information
====================
Profile 1 = ACTIVE
--------
PDP Type = IPv4, Header Compression = OFF
Data Compression = OFF
Access Point Name (APN) = 100
Packet Session Status = Inactive
* - Default profile
Network Information
===================
Current Service Status = Service available
Current Service = Combined
Packet Service = Attached
Packet Session Status = Inactive
Current Roaming Status = Roaming
Network Selection Mode = Manual
Mobile Country Code (MCC) = 460
Mobile Network Code (MNC) = 00
Location Area Code (LAC) = 4318
Cell ID = 25381
Radio Information
=================
Current Band = ANY
Current RSSI = -51 dBm
Modem Security Information
==========================
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
<H3C>
2) 没有呼叫时的接口状态：
<H3C>dis int ce
Cellular0/0 current state: DOWN
Line protocol current state: UP (spoofing)
Description: Cellular0/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet protocol processing : disabled
Link layer protocol is PPP
LCP initial
Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0
Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0
Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0
Physical layer is asynchronous, Baudrate is 9600 bps
Last clearing of counters: Never
Last 5 seconds input rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec
Last 5 seconds output rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec
Input: 55 packets, 3961 bytes
0 broadcasts, 0 multicasts
0 errors, 0 runts, 0 giants
0 CRC, 0 align errors, 0 overruns
0 dribbles, 0 aborts, 0 no buffers
0 frame errors
Output:43 packets, 3140 bytes
0 errors, 0 underruns, 0 collisions
0 deferred
DCD=DOWN DTR=DOWN DSR=DOWN RTS=DOWN CTS=DOWN
<H3C>
3) 触发拨号以及建立呼叫后的Modem状态与Cellular接口状态：
<H3C> ping -c 1
PING (202.108.22.5):
56 data bytes, press CTRL_C to break
%Dec 2 10:26:19:650 2008 H3C IFNET/4/LINK UPDOWN:
Cellular0/0: link status is UP
%Dec 2 10:26:19:655 2008 H3C IFNET/4/UPDOWN:
Line protocol on the interface Cellular0/0 is UP
%Dec 2 10:26:20:229 2008 H3C IFNET/4/UPDOWN:
Protocol PPP IPCP on the interface Cellular0/0 is UP
*Dec 2 10:26:20:230 2008 H3C RM/3/RMDEBUG:
Receive invalid vlink addr(0)
Request time out
--- ping statistics ---
1 packet(s) transmitted
0 packet(s) received
100.00% packet loss
<H3C> ping -c 1
PING (202.108.22.5):
56 data bytes, press CTRL_C to break
Reply from 202.108.22.5: bytes=56 Sequence=1 ttl=52 time=563 ms
--- ping statistics ---
1 packet(s) transmitted
1 packet(s) received
0.00% packet loss
round-trip min/avg/max = 563/563/563 ms
<H3C>dis cel 0/0 al
Modem State:
Hardware Information
====================
Modem Firmware Version = 11.304.17.00.00
Hardware Version = CD96TCPU
International Mobile Subscriber Identity (IMSI) = 460020263407632
International Mobile Equipment Identity (IMEI) = 359298019050464
Factory Serial Number (FSN) = EV5TAB2842800069
Modem Status = Online
Profile Information
====================
Profile 1 = ACTIVE
--------
PDP Type = IPv4, Header Compression = OFF
Data Compression = OFF
Access Point Name (APN) = 100
Packet Session Status = Active
* - Default profile
Network Information
===================
Current Service Status = Service available
Current Service = Combined
Packet Service = Attached
Packet Session Status = Active
Current Roaming Status = Roaming
Network Selection Mode = Manual
Mobile Country Code (MCC) = 460
Mobile Network Code (MNC) = 00
Location Area Code (LAC) = 4318
Cell ID = 25381
Radio Information
=================
Current Band = ANY
Current RSSI = -51 dBm
Modem Security Information
==========================
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
<H3C>
<H3C>dis int ce
Cellular0/0 current state: UP
Line protocol current state: UP (spoofing)
Description: Cellular0/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is negotiated, 10.8.55.214/32
Link layer protocol is PPP
Primary DNS address is 221.130.33.52,Secondary DNS address is 221.130.33.60 LCP opened, IPCP opened
Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0
Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0
Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0
Physical layer is asynchronous, Baudrate is 9600 bps
Last clearing of counters: Never
Last 5 seconds input rate 23.20 bytes/sec, 185 bits/sec, 0.40 packets/sec Last 5 seconds output rate 47.79 bytes/sec, 382 bits/sec, 0.60 packets/sec Input: 67 packets, 4606 bytes
0 broadcasts, 0 multicasts
0 errors, 0 runts, 0 giants
0 CRC, 0 align errors, 0 overruns
0 dribbles, 0 aborts, 0 no buffers
0 frame errors
Output:57 packets, 4095 bytes
0 errors, 0 underruns, 0 collisions
0 deferred
DCD=DOWN DTR=UP DSR=DOWN RTS=UP CTS=DOWN
<H3C>
1.2 3G Modem作为GigabitEthernet0/1的备份接口
1. 配置信息
#
dns resolve
dns proxy enable
dns server 221.130.33.60
dns server 221.130.33.52
#
acl number 3000
rule 0 permit ip
#
interface Cellular0/0
async mode protocol
link-protocol ppp
ppp ipcp dns request
ip address ppp-negotiate
dialer enable-circular
dialer-group 1
dialer timer idle 60
dialer number *99#
#
interface GigabitEthernet0/1
port link-mode route
ip address 172.32.1.1 255.255.255.0
standby interface Cellular0/0
standby timer delay 10 10
#
ip route-static 0.0.0.0 0.0.0.0 Cellular0/0
ip route-static 0.0.0.0 0.0.0.0 GigabitEthernet0/1
#
dialer-rule 1 ip permit
#
user-interface tty 1
modem both
2. 主要配置步骤
1) 与3.3类似配置cellular接口的拨号功能、NAT、DNS与静态路由等
[H3C]dns resolve
[H3C]dns proxy enable
[H3C]dns server 221.130.33.60
[H3C]dns server 221.130.33.52
[H3C]dialer-rule 1 ip permit
[H3C]user-interface tty 0
[H3C-ui-tty0] modem both
[H3C-ui-tty0] quit
[H3C]acl number 3000
[H3C-acl-adv-3000]rule 0 permit ip
[H3C-acl-adv-3000]quit
[H3C]ip route-static 0.0.0.0 0.0.0.0 Cellular0/0
[H3C]ip route-static 0.0.0.0 0.0.0.0 GigabitEthernet0/1
[H3C]interface Cellular0/0
[H3C-Cellular0/0]async mode protocol
[H3C-Cellular0/0]ip address ppp-negotiate
[H3C-Cellular0/0]nat outbound 3000
[H3C-Cellular0/0]ppp ipcp dns request
[H3C-Cellular0/0]dialer enable-circular
[H3C-Cellular0/0]dialer-group 1
[H3C-Cellular0/0]dialer timer idle 60
[H3C-Cellular0/0]dialer number *99#
2) 在主接口上配置地址，并指定备份口为cellular0/0。

主切备与备切主均有定时器，默认均
为0。

这里均配置为10秒设置以防止链路快速UP/DOWN导致频繁切换
[H3C]interface GigabitEthernet0/1
[H3C-GigabitEthernet0/1]ip address 172.32.1.1 255.255.255.0
[H3C-GigabitEthernet0/1]standby interface Cellular0/0
[H3C-GigabitEthernet0/1]standby timer delay 10 10
3. 验证步骤
1) 首先G0/1接口UP，用户通过G0/1访问internet。

[H3C]dis sta sta
Interface Interfacestate Standbystate Standbyflag Pri Loadstate
GigabitEthernet0/1 UP MUP MV
Cellular0/0 STANDBY STANDBY BU 0
Backup-flag meaning:
M---MAIN B---BACKUP V---MOVED U---USED
D---LOAD P---PULLED
[H3C]
2) 拔掉G0/1接口连接的电缆，主接口切换到Cellular0/0备份口。

打开调试开关可以看到主备
切换的调试信息。

<H3C>debugging standby event
<H3C>t m
Info: Current terminal monitor is on.
<H3C>t d
Info: Current terminal debugging is on.
<H3C>
%Dec 3 10:55:03:192 2008 H3C IFNET/4/LINK UPDOWN:
GigabitEthernet0/1: link status is DOWN
%Dec 3 10:55:03:192 2008 H3C IFNET/4/UPDOWN:
Line protocol on the interface GigabitEthernet0/1 is DOWN
*Dec 3 10:55:03:192 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:main
interface turns to down
*Dec 3 10:55:03:192 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:standby-
state will change from MUP
*Dec 3 10:55:03:192 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:standby-
state turns to MDOWNDELAY
<H3C>
<H3C>
*Dec 3 10:55:13:188 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:main
interface down-timer expires
*Dec 3 10:55:13:188 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:standby-
state turns to MDOWN
*Dec 3 10:55:13:188 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:the interface is
waking up
*Dec 3 10:55:13:189 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:standby-state will
change from STANDBY
*Dec 3 10:55:13:189 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:standby-state
turns to UPDELAY
<H3C>
*Dec 3 10:55:23:187 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:standby interface
up-timer expires //说明：主接口down后启动切换备份口的定时器，超时后备份口UP。

*Dec 3 10:55:23:188 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:standby-state
turns to UP
<H3C>
<H3C>
<H3C>dis int ce 0/0
Cellular0/0 current state: DOWN
Line protocol current state: UP (spoofing)
Description: Cellular0/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet protocol processing : disabled
Link layer protocol is PPP
LCP initial
Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0
Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0
Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0
Physical layer is asynchronous, Baudrate is 9600 bps
Last clearing of counters: Never
Last 5 seconds input rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec
Last 5 seconds output rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec
Input: 28 packets, 1786 bytes
0 broadcasts, 0 multicasts
0 errors, 0 runts, 0 giants
0 CRC, 0 align errors, 0 overruns
0 dribbles, 0 aborts, 0 no buffers
0 frame errors
Output:31 packets, 1850 bytes
0 errors, 0 underruns, 0 collisions
0 deferred
<H3C>dis sta sta
Interface Interfacestate Standbystate Standbyflag Pri Loadstate
GigabitEthernet0/1 DOWN MDOWN MU
Cellular0/0 UP UP BU 0
Backup-flag meaning:
M---MAIN B---BACKUP V---MOVED U---USED
D---LOAD P---PULLED
<H3C>
<H3C>ping -c 1
PING (202.108.22.43):
56 data bytes, press CTRL_C to break
%Dec 3 10:55:37:459 2008 H3C IFNET/4/LINK UPDOWN:
Cellular0/0: link status is UP
%Dec 3 10:55:37:464 2008 H3C IFNET/4/UPDOWN:
Line protocol on the interface Cellular0/0 is UP
%Dec 3 10:55:38:157 2008 H3C IFNET/4/UPDOWN:
Protocol PPP IPCP on the interface Cellular0/0 is UP
*Dec 3 10:55:38:159 2008 H3C RM/3/RMDEBUG:
Receive invalid vlink addr(0)
Request time out
--- ping statistics ---
1 packet(s) transmitted
0 packet(s) received
100.00% packet loss
<H3C>
3) 再插上G0/1接口连接的电缆，由备份口切换回主接口。

<H3C>
%Dec 3 10:56:13:181 2008 H3C IFNET/4/LINK UPDOWN:
GigabitEthernet0/1: link status is UP
%Dec 3 10:56:13:181 2008 H3C IFNET/4/UPDOWN:
Line protocol on the interface GigabitEthernet0/1 is UP
*Dec 3 10:56:13:181 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:main
interface turns to up
*Dec 3 10:56:13:181 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:standby-
state will change from MDOWN
*Dec 3 10:56:13:182 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:standby-
state turns to MUPDELAY
<H3C>
<H3C>
<H3C>
%Dec 3 10:56:23:191 2008 H3C IFNET/4/LINK UPDOWN:
Cellular0/0: link status is DOWN
%Dec 3 10:56:23:191 2008 H3C IFNET/4/UPDOWN:
Line protocol on the interface Cellular0/0 is DOWN
%Dec 3 10:56:23:191 2008 H3C IFNET/4/UPDOWN:
Protocol PPP IPCP on the interface Cellular0/0 is DOWN
*Dec 3 10:56:23:191 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:main
interface up-timer expires //说明：主接口UP后启动切换主接口的定时器，超时后备份进入
Standby状态。

*Dec 3 10:56:23:192 2008 H3C STANDBY/7/DEBUGGING:GigabitEthernet0/1:standby-
state turns to MUP
*Dec 3 10:56:23:192 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:the interface is
hypnotized
*Dec 3 10:56:23:192 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:standby-state will
change from UP
*Dec 3 10:56:23:192 2008 H3C STANDBY/7/DEBUGGING:Cellular0/0:standby-state
turns to STANDBY
<H3C>
<H3C>dis sta sta
Interface Interfacestate Standbystate Standbyflag Pri Loadstate
GigabitEthernet0/1 UP MUP MU
Cellular0/0 STANDBY STANDBY BU 0
Backup-flag meaning:
M---MAIN B---BACKUP V---MOVED U---USED
D---LOAD P---PULLED
<H3C>
<H3C>dis int ce
Cellular0/0 current state: Standby
Line protocol current state: UP (spoofing)
Description: Cellular0/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet protocol processing : disabled
Link layer protocol is PPP
LCP initial
Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0
Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0
Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0
Physical layer is asynchronous, Baudrate is 9600 bps
Last clearing of counters: Never
Last 5 seconds input rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec
Last 5 seconds output rate 0.00 bytes/sec, 0 bits/sec, 0.00 packets/sec
Input: 44 packets, 2538 bytes
0 broadcasts, 0 multicasts
0 errors, 0 runts, 0 giants
0 CRC, 0 align errors, 0 overruns
0 dribbles, 0 aborts, 0 no buffers
0 frame errors
Output:41 packets, 2169 bytes
0 errors, 0 underruns, 0 collisions
0 deferred
DCD=DOWN DTR=DOWN DSR=DOWN RTS=DOWN CTS=DOWN
<H3C>
1.3 结合NQA保持3G Modem永远建立呼叫。

因为3G Modem卡自身特性，在长时间无流量时会中断连接，不论上层DCC是否把
idle定时器设置为0。

可以利用NQA功能定期发送报文，以保持呼叫建立。

1. 配置信息
#
acl number 3000
rule 0 permit ip
#
dns resolve
dns proxy enable
dns server 221.130.33.60
dns server 221.130.33.52
#
interface Cellular0/0
nat outbound 3000
async mode protocol
link-protocol ppp
ppp ipcp dns request
ip address ppp-negotiate
dialer enable-circular
dialer-group 1
dialer timer idle 0
dialer number *99#
#
nqa entry admin 3g
type icmp-echo
data-size 56
description keep-3gmodem-active
destination ip 202.108.22.5
frequency 60000
#
ip route-static 0.0.0.0 0.0.0.0 Cellular0/0
#
dialer-rule 1 ip permit
#
nqa schedule admin 3g start-time now lifetime forever
#
user-interface tty 1
modem both
#
2. 主要配置步骤
1) 与3.3类似配置cellular接口的拨号功能、NAT、DNS与静态路由等
[H3C]dns resolve
[H3C]dns proxy enable
[H3C]dns server 221.130.33.60
[H3C]dns server 221.130.33.52
[H3C]dialer-rule 1 ip permit
[H3C]user-interface tty 0
[H3C-ui-tty0] modem both
[H3C-ui-tty0] quit
[H3C]acl number 3000
[H3C-acl-adv-3000]rule 0 permit ip
[H3C-acl-adv-3000]quit
[H3C]ip route-static 0.0.0.0 0.0.0.0 Cellular0/0
[H3C]interface Cellular0/0
[H3C-Cellular0/0]async mode protocol
[H3C-Cellular0/0]ip address ppp-negotiate
[H3C-Cellular0/0]nat outbound 3000
[H3C-Cellular0/0]ppp ipcp dns request
[H3C-Cellular0/0]dialer enable-circular
[H3C-Cellular0/0]dialer-group 1
[H3C-Cellular0/0]dialer timer idle 0
[H3C-Cellular0/0]dialer number *99#
2) 配置NQA，并启动NQA测试
[H3C]nqa entry admin 3g
[H3C-nqa-admin-3g]type icmp-echo
[H3C-nqa-admin-3g-icmp-echo]data-size 56
[H3C-nqa-admin-3g-icmp-echo]description keep-3gmodem-active
[H3C-nqa-admin-3g-icmp-echo]destination ip 202.108.22.5
[H3C-nqa-admin-3g-icmp-echo]frequency 60000
[H3C-nqa-admin-3g-icmp-echo]quit
[H3C]nqa schedule admin 3g start-time now lifetime forever
3. 验证步骤
1) 确保路由的正确，打开NQA的debug开关，查看NQA的探测报文。

<H3C>debugging nqa all
<H3C>
<H3C>
<H3C>t m
Info: Current terminal monitor is on.
<H3C>t d
Info: Current terminal debugging is on.
<H3C>dis int ce0/0
Cellular0/0 current state: UP
Line protocol current state: UP (spoofing)
Description: Cellular0/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is negotiated, 10.8.170.78/32
Link layer protocol is PPP
Primary DNS address is 221.130.33.52,Secondary DNS address is 221.130.33.60
LCP opened, IPCP opened
Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0
Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0
Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0
Physical layer is asynchronous, Baudrate is 9600 bps
Last clearing of counters: Never
Last 5 seconds input rate 23.20 bytes/sec, 185 bits/sec, 0.40 packets/sec
Last 5 seconds output rate 4.59 bytes/sec, 36 bits/sec, 0.20 packets/sec
Input: 59 packets, 3266 bytes
0 broadcasts, 0 multicasts
0 errors, 0 runts, 0 giants
0 CRC, 0 align errors, 0 overruns
0 dribbles, 0 aborts, 0 no buffers
0 frame errors
Output:51 packets, 2487 bytes
0 errors, 0 underruns, 0 collisions
0 deferred
DCD=DOWN DTR=UP DSR=DOWN RTS=UP CTS=DOWN
<H3C>
*Dec 3 11:01:38:497 2008 H3C NQA/7/NQA_Event: NQA schedule: Entry(admin-3g) is added to the test schedule queue.
*Dec 3 11:01:38:498 2008 H3C NQA/7/NQA_Event: ICMP test (admin-3g): Start to probe.
*Dec 3 11:01:38:498 2008 H3C NQA/7/NQA_Event: ICMP test (admin-3g): Start to send packets.
*Dec 3 11:01:39:24 2008 H3C NQA/7/NQA_Event: ICMP test (admin-3g): Probe succeeded.
<H3C>
<H3C>
*Dec 3 11:02:38:497 2008 H3C NQA/7/NQA_Event: NQA schedule: Entry(admin-3g) is added to the test schedule queue.
*Dec 3 11:02:38:498 2008 H3C NQA/7/NQA_Event: ICMP test (admin-3g): Start to probe.
*Dec 3 11:02:38:498 2008 H3C NQA/7/NQA_Event: ICMP test (admin-3g): Start to send packets.
*Dec 3 11:02:39:24 2008 H3C NQA/7/NQA_Event: ICMP test (admin-3g): Probe succeeded.
说明：按照配置，每隔1分钟会发送一个探测报文。

注意路由要正确，确保探测报文正确的从cellular口发出。