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DHCP Option 60 spoof needed
#1
I'm seeing something really weird on Charter, and it's duplicatable. Say I have a good NoBPI MAC address, checked by looking at it's tftp config file and seeing if Privacy Enable is set to 1. I clone the address on my sb5101 and disabling BPI, and then bring it up online with a forced NoBPI config. It begins working after a couple of false starts, but then when I re-download the real tftp file, it has changed to a BPI enabled config.

Somehow, Charter is detecting that I have a BPI enabled modem, regardless of what MAC address I use, and then configuring the tftp file accordingly. What's interesting is I don't know whats going to happen to the real modem I had cloned, because it probably isn't BPI enabled in the first place.

I suspect the modem sends out a DHCP discover that it gives off some indication of its capabilities, specifically option 60, which sends out a string of "docsis#.#" according to the cisco documents I've read. Since Haxorware is based on the SB5101E-2.7.5.0-LTSH firmware, I'm assuming that it still sends a string of "docsis2.0". Haxorware somehow needs to change this option 60 to a "docsis1.0" when BPI is set to disable if this is the case, unless someone knows how to do this manually.
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Messages In This Thread
DHCP Option 60 spoof needed - by jrgutier - 21-09-2010, 12:11 AM
RE: DHCP Option 60 spoof needed - by drewmerc - 21-09-2010, 07:29 AM
RE: DHCP Option 60 spoof needed - by jrgutier - 22-09-2010, 10:21 AM
RE: DHCP Option 60 spoof needed - by drewmerc - 22-09-2010, 11:32 AM
RE: DHCP Option 60 spoof needed - by jrgutier - 25-09-2010, 01:34 AM
RE: DHCP Option 60 spoof needed - by drewmerc - 25-09-2010, 08:17 AM
RE: DHCP Option 60 spoof needed - by jrgutier - 18-10-2010, 08:07 PM
RE: DHCP Option 60 spoof needed - by drewmerc - 19-10-2010, 09:29 AM
RE: DHCP Option 60 spoof needed - by jrgutier - 20-10-2010, 12:37 AM
RE: DHCP Option 60 spoof needed - by drewmerc - 20-10-2010, 08:29 AM
RE: DHCP Option 60 spoof needed - by torro32 - 02-09-2012, 08:37 PM
RE: DHCP Option 60 spoof needed - by torro32 - 03-09-2012, 10:47 AM
RE: DHCP Option 60 spoof needed - by sixteen - 03-09-2012, 01:55 PM
RE: DHCP Option 60 spoof needed - by torro32 - 03-09-2012, 02:23 PM

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