Serial port over Ethernet Mifi and others

Technical Support for Routers
1

How to setup a serial port over Ethernet
using the RS232 connector with TTL converter

2

You can try ser2net, and run a TCP232 program in your PC.

  • Install ser2net

    opkg update && opkg install ser2net

  • Configure ser2net

    vi /etc/config/ser2nt

config proxy
    option enabled 1
    option port 5002
    option protocol raw
    option timeout 0
    option device '/dev/ttyATH0'
    option baudrate 115200
    option databits 8
    option parity 'none'
    option stopbits 1

  • Disable Debug Console

    Comment on this line ::askconsole:/bin/ash --login in /etc/inittab.

    # cat /etc/inittab 
::sysinit:/etc/init.d/rcS S boot
::shutdown:/etc/init.d/rcS K shutdown
# ::askconsole:/bin/ash --login

  • Reboot device

    reboot