F412 optical cat super password crack, crack user restrictions, turn off remote control, restore router dialing

Many families have changed the fiber into the home, it is certainly not the light cat. Today, F412 Light cat As an example of this model light cat Super Password crack method.
First, F412 Super password crack method
1, run cmd, enter Telnet 192.168.1.1;

2, the connection succeeds, will appear F412 login: Prompt login account and password, account root password root or 521 (formerly root is now a lot of 521), enter the password when there is no character prompt input root return 521 Enter




3. After the successful login, you will be prompted BusyBox version, where you can do the shell operation


4. Input sendcmd 1 db p UserInfo (if invalid with Sendcmd 1 DB p devauthinfo test)
I F412 the above command is invalid, with Sendcmd 1 DB p devauthinfo:

/# sendcmd 1 DB P UserInfo
<tbl name= "UserInfo" rowcount= "0" >
</Tbl>
/# sendcmd 1 DB P devauthinfo
<tbl name= "Devauthinfo" rowcount= "6" >
<row no= "0" >
<dm name= "ViewName" val= "IGD. AU1 "/>
<dm name= "Enable" val= "1"/>
<dm name= "IsOnline" val= "0"/>
<dm name= "AppID" val= "1"/>
<dm name= "user" val= "telecomadmin"/> red is username
<dm name= "Pass" val= "telecomadmin97023828"/> Red is super password
<DM name= "level" val= "1"/>
<dm name= "Extra" val= ""/>
<dm name= "extraint" val= "0"/>
</Row>
<row no= "1" >
<dm name= "ViewName" val= "IGD. AU2 "/>
<dm name= "Enable" val= "1"/>
<dm name= "IsOnline" val= "0"/>
<dm name= "AppID" val= "1"/>
<dm name= "User" val= "Useradmin"/>
<dm name= "Pass" val= "z9mdk"/>
<DM name= "level" val= "2"/>
<dm name= "Extra" val= ""/>
<dm name= "extraint" val= "0"/>

The third line is the user group permissions, 1 is the Super Administrator, 2 is the ordinary user

5. There are other commands as follows:
to modify the super account, you can use Sendcmd 1 DB set devauthinfo 0 User XXXXXX
To Modify the Super password, you can use Sendcmd 1 DB set devauthinfo 0 Pass XXXXXX
To view the root account password (Telnet remote access account number and password), you can use Sendcmd 1 DB p telnetcfg
to modify the root account, you can use Sendcmd 1 DB set telnetcfg 0 ts_uname XXXXXX
to modify the root password, you can use Sendcmd 1 DB set telnetcfg 0 ts_upwd XXXXXX
to modify the super account, you can use Sendcmd 1 DB set UserInfo 0 Username XXXXXX
To Modify the Super password, you can use Sendcmd 1 DB set UserInfo 0 Password XXXXXX

Ii. Breakthrough 4 User Limit
1, Input sendcmd 1 DB p CLTLMT (note space and case) explanation: Check the current number of users

2, Input sendcmd 1 DB set CLTLMT 8 Max 9 (note space and case) Explanation: Modify the maximum number of users is 9, the original is 5, can be changed to the other number, the maximum recommended number is not more than 255

3, Input Sendcmd 1 DB set CLTLMT 8 Enable 0 (note space and case) explanation: Remove the restrictions, some areas may have this check, for safety reasons to recommend that you change this value to 0
4. Input Sendcmd 1 DB Save (note space and case) Explanation: Modify Save

iii. removal of telecommunications remote control
1. Open Browser HTTP://192.168.1.1/WEB_SHELL_CMD.GCH
2. Input sendcmd 1 DB p mgtserver (note space and case) explanation: Check out the current telecom remote control
3. Input Sendcmd 1 DB set mgtserver 0 URLhttp://127.0.0.1 (note space and case) explanation: The concise way is to get rid of the server URL
4. Input Sendcmd 1 DB set Mgtserver 0 tr069enable 0 (note space and case) Explanation: Disable TR069 remote control
5. Input Sendcmd 1 DB Save (note space and case) Explanation: Modify Save

Four, turn off the light cat automatic dialing and routing function  
1, first the router's IP of the C segment modified, as long as not 192.168.1.1 on the line, such as 192.168.38.1
2, to the optical cat's DHCP configuration, the start of the DHCP service to remove the check, OK.
3, the Internet connection here all deleted, in the Internet connection, a new connection, business mode selected "bridge mode", port binding two all tick (if there is IPTV only 1 tick), DHCP service does not tick, VLAD ID 1402, other fixed
4, restart the light cat, and then just like before the normal cat + route set. Connect the WAN port of the router to the optical cat ports 1.
5, in the router "network parameters"-"WAN Settings", select "PPPoE", and then put the broadband user name and password (on the dispatch of the first installation of telecommunications), click on the "Connection", you should dial the success.

F412 optical cat super password crack, crack user restrictions, turn off remote control, restore router dialing