I just wanted to know if there is an effective way to recover a password on a pix 506e. The documentation on the this site does not work that way explained. Due to a recent ISP cut-over this morining at a client site they for got the password so I am unable to change the outside ip interface address to the new scheme. Please advise and thank you in advance.
I know this is over a year late, but I'm new to the forum. I had the same problem. The pinouts in the manual to build your own cable are not correct when trying to connect to a 'standard' PC COM (serial) port
The correct pinouts are as follows:
RJ45 1 -> 8 (not 7)
RJ45 2 -> 6 (not 4)
RJ45 3 -> 2 (not 3)
RJ45 4 -> 5 (as stated)
RJ45 5 -> 5 (as stated)
RJ45 6 -> 3 (not 2)
RJ45 7 -> 4 (not 6)
RJ45 8 -> 7 (not 8)
I constructed a working cable using the above. Hope this helps someone else, if not Doug.
Don't forget that the RS232 'standard' was anything but. If my pinouts don't work for you, match the signal codes in the Cisco documentation with those for your serial port.
The other problem I ran into was finding the correct version of the unlock binary (nppix.bin, np50.bin, etc). Some even run and say the passwords have been reset, but don't actually do anything. So selecting the correct binary is essential.
Once you get serial communication established, let it boot up normally (without entering monitor mode). You'll see version information for the Embedded BIOS and 'Secure PIX Firewall BIOS'. These threw me off, and I tried to load the binary for these versions, without success.
Near the end of the initialization screens it will read Cisco PIX Firewall version X.X - that is the version you need to use when selecting the password recovery binary to upload to the PIX. You can set Hyperterminal to log the output to a text file, so you can examine the initialization info at your leisure.
Plug ur console in the pix and reboot it.When it will boot then press ctrl+break key. After that u change the pix configuration register value to 0x41 and set the passwd and save & reboot.After that u again change the configuration register value to 0x01 and save the configuration.Finally u reboot it and work properly.
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