Re: bug causes tcp/ip stack corruption

Chris Adams (cadams@ro.com)
18 Dec 1998 10:30:55 -0600


Once upon a time, <ralf@uni-koblenz.de> said:
>On all modem I know the ``+++'' string has to be preceeded and followed by
>a second pause; the exact length is configurable. Since SLIP and PPP
>packets are always longer than three bytes, this should not ever happen?

There is only a pause (or "guard time") on Hayes modems or modems from
makers that have a Hayes "guard time" license. Hayes patented the idea
of a guard time, and many modem makers simply dropped the guard time
rather than pay Hayes.

See the BUGTRAQ mailing list (about a month ago) for an in depth
discussion of this and how it can be a problem.

-- 
Chris Adams - cadams@ro.com
System Administrator - Renaissance Internet Services
I don't speak for anybody but myself - that's enough trouble.

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