Messages in this thread | | | Date | Tue, 6 Aug 2002 13:01:14 -0700 (PDT) | From | "Randy.Dunlap" <> | Subject | Re: pppd[32497]: Unsupported protocol 'CallBack Control Protocol (CBCP)' (0xc029) received |
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On Tue, 6 Aug 2002, Richard B. Johnson wrote:
| On Tue, 6 Aug 2002, Diego Calleja wrote: | | > In different kernels I've seen this message: | > | > Aug 6 19:10:01 localhost pppd[32497]: Unsupported protocol 'CallBack | > Control Protocol (CBCP)' (0xc029) received | > | > Is pppd who has to handle this protocol, or it's a "ToDo" in ppp in the | > kernel? In the last case, will it be implemented? | > | > and, what's the hell is the "Callback Protocol?" | | You are connected to a M$ 'server' and it's trying to interrogate | your machine with 'Magic Lantern'. I don't think you want it | implemented. From what I hear, it's what the US Government decided | that M$ must put into everything so that any 'Duly authorized....' | can peer into your computer. | | Check it out. Scary...
I've never heard this explanation, but who knows??
I've heard of callback relating to RAS as a method of preventing just anyone calling into a particlar RAS server. Using callbacks, the server hangs up and immediately calls the originator back to a valid, known telephone number. Also allows the server to be billed for it instead of the caller.
At MS web site: <quote> Callback Negotiation with the Callback Control Protocol The Callback Control Protocol (CBCP) is documented in ftp://ftp.microsoft.com/developr/rfc/cbcp.txt . CBCP negotiates the use of callback where the remote access server, after authenticating the remote access client, terminates the physical connection, waits a specified amount of time, and then calls the remote access client back at either a static or dynamically configured phone number. Common CBCP options include the phone number being used by the remote access server to call the remote access client back. </quote>
-- ~Randy
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