Use as 3g hotspot?

RouterOS Wireless Networking
1

Hi,
I have a mikrotik RB751U 2HnD
I have connected an Huawei E180 to the USB port.
Now how do I have to configure the mikrotik to use it as a 3g modem?

2

Go through these steps:

  1. plug it in and check if ppp-out1 interface appears
  2. set the correct data channel and info channel in ppp-out1 properties
  3. set correct APN name in properties
  4. add nat rule
/ip firewall nat add action=masquerade chain=srcnat disabled=no out-interface=ppp-out1

further reading: http://mybroadband.co.za/vb/showthread.php/400897-MikroTik-RouterBoard-and-USB-3G-Modems

3

Hi,

The ppp-out1 is there and is running.
The nat rule I add.
But still can get internet connection from Interface 1, 2, 3, 4 or 5
So I must do more but what?

4

In ppp-out1 settings disable ‘Dial On Demand’, enable ‘Add Defaul Route’, enable ‘Use Peer DNS’.

If it doesn’t help, then please post output from this command:

interface ppp-client print
5

I have done settings below and now it is working.
Are ther security issues in it?

Set system identity

/system identity set name=mt01

Add bridges

/interface bridge add name=BR-LAN disabled=no

Turn on WLAN

/interface wireless enable wlan1

Hide SSID wlan1 (mikrotik)

/interface wireless set wlan1 hide-ssid=yes

Set wireless mode

/interface wireless set mode=ap-bridge wlan1 band=2ghz-b/g/n ht-txchains=0,1 ht-rxchains=0,1

Add a security profile

/interface wireless security-profile add name=LAN authentication-type=wpa2-psk unicast-ciphers=aes-ccm group-ciphers=aes-ccm wpa2-pre-shared-key=“3gACCESS” mode=dynamic-keys

Set wireless channel

/interface wireless set wlan1 channel-width=20/40mhz-ht-above

Set wirless protocol

/interface wireless set wlan1 wireless-protocol=any

Add virtual-ap

/interface wireless add master-interface=wlan1 ssid=3gLANAP security-profile=LAN name=VAP-LAN disabled=no

Add ports to Bridge

/interface bridge port add interface=ether1 bridge=BR-LAN disabled=no
/interface bridge port add interface=ether2 bridge=BR-LAN disabled=no
/interface bridge port add interface=ether3 bridge=BR-LAN disabled=no
/interface bridge port add interface=ether4 bridge=BR-LAN disabled=no
/interface bridge port add interface=VAP-LAN bridge=BR-LAN disabled=no

IP toewijzen aan BR-LAN

/ip address add address=192.168.1.254/24 interface=BR-LAN

Add DHCP-Address-Pool

/ip pool add name=LAN range=192.168.1.1-192.168.1.253

Add DHCP-Server BR-LAN

/ip dhcp-server add interface=BR-LAN name=DHCP-LAN address-pool=LAN lease-time=3d disabled=no
/ip dhcp-server network add address=192.168.1.0/24 dns-server=8.8.8.8 gateway=192.168.1.254 netmask=255.255.255.0

Set interface ppp-client settings

/interface ppp-client set 0 disabled=no dial-on-demand=no add-default-route=yes

Add default Gateway

/ip route add gateway=192.168.1.254

Add NAT

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

Add NTP server

/system ntp client set primary-ntp=128.204.195.6 mode=unicast enabled=yes

Enable Graphs

/tool graphing interface add interface=BR-LAN

Set Admin password

/user set admin password=Password