sb6120 stopped working

[stranger]

Let me start by saying im new to this. I bought the sb6120 from ebay as is with no wires or anything and when I got it, it was working fine up until 2 days ago, i'm on comcast and they have just upgraded some stuff around my area, and since then I have been having trouble getting online. If anyone is having the same problem please let me know if you figured out a way to fix it. Thank You

[stranger]

is there any way I can change my hfc mac address using just an ethernet cable

[drewmerc]

is it running the shelled firmware if so

Code:

How to connect to dropbear with Putty
Download Putty then launch it
Host Name: 192.168.100.1
Port: 22
Connection Type: SSH
Click Open
User name: root
Password: sbhacker

How to change your MAC address/Serial
In console type the following
Short way

cli docsis/Production/prodset


(Press ENTER until you get to "Cable Modem Serial Num" or "Cable Modem MAC")
Cable Modem Serial Number is 24 digits
Cable Modem MAC needs to be in this format 00-11-22-33-44-55
In SSH type this instead

/usr/sbin/cli docsis/Production/prodset


all the "prodset" settings are stored in /nvram/1/1 the first 4 bytes are a time stamp so it changes everytime you save with prodset

Enable config page changeable
In Console type

cli docsis/Motorola/mProduction/htmlReadOnly
type "false" [ENTER]
then press W to save


In SSH use

/usr/sbin/cli docsis/Motorola/mProduction/htmlReadOnly
type "false" [ENTER]
then press W to save



How to enable more debugging info in console (You will see lots of diagnostic output all the time)

cli logger/setDefaults [ENTER]



How to Clear DS and US frequency database in NVRAM

cli docsis/Debug/clearNvramDsUsFreqDb



How to Clear US frequency database in NVRAM

cli docsis/Debug/clearNvramUsFreqDb



The SB6120 accepts certs straight from a Haxorware modem
this is a find from rajkosto
cd /nvram/1/security
rm mfg_key_pub.bin
rm cm_cert.cer
rm mfg_cert.cer
rm cm_key_prv.bin
(the rms are necessary because they are symbolic links by default)
then transfer over wget or tftp or whatever
cm_cert.cer = cm_cert.cer from haxorware
mfg_cert.cer = ca_cert.cer from haxorware
cm_key_prv.bin = private.key from haxorware
mfg_key_pub.bin = public key from ca_cert.cer from haxorware (open with your operating system's shell extensions, find the public key structure, and copy the hex bytes into a hex editor having it treat them as hex data)
and since the originals were chmod 777,
chmod 777 mfg_key_pub.bin
chmod 777 cm_cert.cer
chmod 777 mfg_cert.cer
chmod 777 cm_key_prv.bin

[stranger]

thanks for your help I've changed my mac but it didnt work, is there any way I can firgure out what hack or firmware I am running, and what is bpi, bpi+1.0? sorry for all the questions

[drewmerc]

i dont have a 6120 so i cant help
so i'll send your here
http://www.sbhacker.net/forum/index.php/...30-modems/