OTG Micro-B plug and Standard A receptacle for USB modem

角色

如果你的USB Modem能在MikroTik的OS认可，那么你可以通过OTG Micro-B plug to Standard-A receptacle，再加上适当配置，那么你的USB 3G在routerboadrd就可以上网。



然后插上我的modem在RB2011UAS-2HnD-IN，只能做到

1. [admin@MikroTik] /system resource usb> print
   
2. # DEVICE VENDOR                   NAME                  SPEED
   
3. 0 1:1                             RB400 EHCI            480 Mbps
   
4. 1 1:6    HUAWEI Technology        HUAWEI Mobile         480 Mbps

複製代碼

不能再下一步：

1. [admin@MikroTik] /system resource usb> /port print
   
2. Flags: I - inactive
   
3. #   NAME                        CHANNELS USED-BY                     BAUD-RATE
   
4. 0   serial0                            1 Serial Console              auto

複製代碼

角色

When the same data card was moved to another 3G modem which is specifically used for China Union network, I was not able to access the broadband internet.

角色

The major issue using data plan to make phone calls is the delay! However it will be much cheaper then ordinary mobile operators.

Qnewbie

Yes, I am using its data plan to make calls.

角色

The plan is very good and not expansive. How comes the mobile phone charge is so high?With the low price data plan, you could make and receive voip calls via the data plan, right?

Qnewbie

I have been using mobile phone+surf(speed<1Mb/s) plan(~HK$70) per month for more than one year now.

There was a free data plan(1G/month), which I missed the promotion.

角色

Thanks you for your advice.

By the way, what the lowest and best offer of the data plan in your area?

Qnewbie

You might need watchdog for your 3G connection too:
http://forum.mikrotik.com/viewtopic.php?f=9&t=69807

I set the 3G modem as failover internet connection and use dial-on-demand but in your case you might need the watchdog.

角色

Thanks!

Now I am able to access the Internet via my Huawei E1550 3G modem which was a gift when I renewed the PCCW broadband contract.

Qnewbie

Maybe you forget the NAT rule:

1. /ip firewall nat
   
2. add chain=srcnat action=masquerade out-interface=ppp-out1

複製代碼

If it doesn't work after adding the nat rule. Check add-default-route option

1. /interface ppp-client print

複製代碼

set add-default-route=yes if not.

角色

For completeness, I included all the rules in my RB for your interest as follows:

1. [admin@MikroTik] > /ip firewall nat
   
2. [admin@MikroTik] /ip firewall nat> add chain=srcnat action=masquerade to-address                                                                             es=0.0.0.0 out-interface=ppp-out1
   
3. [admin@MikroTik] /ip firewall nat> print
   
4. Flags: X - disabled, I - invalid, D - dynamic
   
5. 0   ;;; default configuration
   
6.      chain=srcnat action=masquerade out-interface=sfp1-gateway
   
7. 
   
8. 1   ;;; default configuration
   
9.      chain=srcnat action=masquerade to-addresses=0.0.0.0
   
10.      out-interface=ether1-gateway
    
11. 
    
12. 2   chain=dstnat action=dst-nat to-addresses=192.168.88.100 to-ports=5060
    
13.      protocol=udp dst-port=5060
    
14. 
    
15. 3   chain=dstnat action=dst-nat to-addresses=192.168.88.100
    
16.      to-ports=10000-20000 protocol=udp dst-port=10000-20000
    
17. 
    
18. 4   chain=dstnat action=dst-nat to-addresses=192.168.88.100 to-ports=8088
    
19.      protocol=tcp dst-port=8088
    
20. 
    
21. 5   chain=srcnat action=masquerade to-addresses=0.0.0.0 out-interface=ppp-out1
    
22. [admin@MikroTik] /ip firewall nat> move 5 2
    
23. [admin@MikroTik] /ip firewall nat> print
    
24. Flags: X - disabled, I - invalid, D - dynamic
    
25. 0   ;;; default configuration
    
26.      chain=srcnat action=masquerade out-interface=sfp1-gateway
    
27. 
    
28. 1   ;;; default configuration
    
29.      chain=srcnat action=masquerade to-addresses=0.0.0.0
    
30.      out-interface=ether1-gateway
    
31. 
    
32. 2   chain=srcnat action=masquerade to-addresses=0.0.0.0 out-interface=ppp-out1
    
33. 
    
34. 3   chain=dstnat action=dst-nat to-addresses=192.168.88.100 to-ports=5060
    
35.      protocol=udp dst-port=5060
    
36. 
    
37. 4   chain=dstnat action=dst-nat to-addresses=192.168.88.100
    
38.      to-ports=10000-20000 protocol=udp dst-port=10000-20000
    
39. 
    
40. 5   chain=dstnat action=dst-nat to-addresses=192.168.88.100 to-ports=8088
    
41.      protocol=tcp dst-port=8088
    
42. [admin@MikroTik] /ip firewall nat>

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角色

Now I am able to use the 3G modem to connect internet and write this message. The most important issue to add a router from the 3G modem to the current network by

1. /ip firewall nat> add chain=srcnat action=masquerade to-address                                                                             es=0.0.0.0 out-interface=ppp-out1

複製代碼

After adding, I moved the above rules to a suitable line.

角色

现在modem可以用console连上internet，但是在其他etherX不能上网。

角色

My E1550 modem is also able to give the same results as Qnewbie did

/system resource usb print

1. [admin@MikroTik] > /system resource usb print
   
2. # DEVICE VENDOR                   NAME                  SPEED
   
3. 0 1:1                             RB400 EHCI            480 Mbps
   
4. 1 1:3    HUAWEI Technology        HUAWEI Mobile         480 Mbps
   
5. [admin@MikroTik] >

複製代碼

/port print

1. [admin@MikroTik] > /port print
   
2. Flags: I - inactive
   
3. #   NAME                        CHANNELS USED-BY                     BAUD-RATE
   
4. 0   serial0                            1 Serial Console              auto
   
5. 1   usb2                               2 PPP <ppp-out1>              9600
   
6. [admin@MikroTik] >

複製代碼

角色

Were you able to connect the Internet via the modem?