Everyone who has Internet connection need a kind of router and each machine needs some operating system code to run that.
DNA-A211 is a router provided by BSNL in India, and It does have a OS Running inside and to the grace of GNU its running GNU/Linux inside, having Minimal BusyBox Pre-loaded..
So, How do I access this machine??
We all usually access this using the Web interface provided by BSNL, generally running on port number 80.
To access that, access this IP through any web browser..
Yeah, sure, there are many chances this IP can be different and in that case, you can find it using this command in linux shell
raj@raj:~$ arp Address HWtype HWaddress Flags Mask Iface 192.168.1.1 ether 00:1b:57:a2:a6:a0 C wlan0 raj@raj:~$
Okay. I got it and able to access this through the web interface.. But how can I access the shell??
Even though it has linux under the hood and has a minimal busybox, it doesnt provide all services like SSH. But it does have telnet running inside.
So just try this with user name as admin and password as admin in-case if its not changed.
raj@raj:~$ telnet 192.168.1.1 Trying 192.168.1.1... Connected to 192.168.1.1. Escape character is '^]'. BCM96338 ADSL Router Login: admin Password: >
Voila.. I got in… Now what next??
Get available commands using
You will have an output like
> ? ? help logout reboot adsl atm brctl cat df dumpcfg echo ifconfig kill arp defaultgateway dhcpserver dns lan passwd ppp remoteaccess restoredefault route save swversion wan serialnum ping ps pwd sntp sysinfo tftp wlctl >
Okay.. How can I launch the Busybox shell??
Run this command in the prompt..
> sh BusyBox v1.00 (2009.02.27-11:34+0000) Built-in shell (msh) Enter 'help' for a list of built-in commands. # help Built-in commands: ------------------- . : break cd continue eval exec exit export help login newgrp read readonly set shift times trap umask wait [ busybox cat chmod date df dmesg echo expr false ftpget ifconfig init insmod ip iproute kill klogd linuxrc ln logger logread mkdir mount msh ping ping6 ps pwd reboot rm rmmod route sendarp sh sysinfo syslogd test tftpd top true tty vconfig #
Now you can play with the available commands in this..