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+--- Thread: The DOCSIS Shake (/showthread.php?tid=2462)
The DOCSIS Shake - mandrake77 - 30-03-2013
So... Im comparing these 2 telnet logs in order to find discrepancies between a subbed (old-security) and a non-prov cm (new security).
I found NO differences whatsoever up to the DHCP Settings; in which the CMTS all of the sudden (each CMTS/log MAC differ cause they're in different nodes) decides that the TFTP server of the non-prov CM will be a 10.x.x.x IP (non-provisioned in my country).
Condition:
Same Sb5101 on both nodes
CVC/HFC MAC Original configuration
The subbed gets 55 TLVs (CPE Access control I guess) Vs. the non-prov gets 33TLVs, resulting in a eventual loop due to "unrecognized OID", in which at a point they are marked as "UNKNOWN, ignoring."
I've checked the DOCSIS Specification manual (an extract oftenly posted by Jr) as a guide on the interpretation of BPI+ authentication process.
At what point will the handshake end?
Thanks!
___________________________________________________
Off-topic note: There's also in another manual, a lot of emphasis on the synching of a certain element in order to get proper BPI auth., which seems to me very interesting.
RE: The DOCSIS Shake - southernyankey1970 - 30-03-2013
Depends on how the ISP set up the CMTS and how many security features are implemented/enforced.
RE: The DOCSIS Shake - mandrake77 - 30-03-2013
(30-03-2013, 09:39 PM)southernyankey1970 Wrote: Depends on how the ISP set up the CMTS and how many security features are implemented/enforced.
I mean, is there a specific string (or set of strings/echoes) that let me know when the process is over?
i.e.
CM> BPI initialization completed. Calling ConfigOperational().
Enabling network access for all CPE ports.
mot_scanList: Writing to Flash!
BcmCmDocsisStatusEventCodes::kCmIsOperational ??
Cheers
RE: The DOCSIS Shake - mandrake77 - 02-04-2013
I found a "space" which is granted for reauthorization... a time "period", (lets call it that way) which gives opportunity to deal again with the CMTS... ----- Silent..
wish there was like a private room to discuss (theorize) about this stuff... not that Im not interested in other ppl to learn it too, but might blow-away someone's else treasured secret
RE: The DOCSIS Shake - ABMJR - 02-04-2013
Its called a re-submission rather than drop the handshake you can retry the credentials again