3G Modem典型配置
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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
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
2) 没有呼叫时的接口状态：
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
3) 触发拨号以及建立呼叫后的Modem状态与Cellular接口状态：
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
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