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Re: BREAK OVER SSH: draft-ietf-secsh-break-02



The following is from the DEC VT100 manual:

"BREAK – Typing the BREAK key causes the transmission line to be forced to its zero state for 0.2333 seconds ± 10 percent. If either SHIFT key is down, the time is increased to 3.5 seconds ± 10 percent. Data Terminal Ready is also deasserted during this interval. At the conclusion of the 3.5 second interval Data Terminal Ready will again be asserted.

"The SHIFT and BREAK keys typed together provide the long-break-disconnect function. Used with properly configured modems with RS-232-C levels, it will cause both the local and remote data sets to disconnect. For modems that are connected via the 20 mA current loop, issuing the long space may disconnect the remote data set only.

"The CTRL and BREAK keys typed together cause the transmission of the answerback message.

"The BREAK key does not function when the VT100 is in LOCAL mode."




Phillip Remaker wrote:

I submit for your comments the second (third?  Did we start at zero?) draft
of "break over SSH."

- Split normative/non-normative references
- Added verbage on cascaded connections and dealing with BREAK on
psuedo-ttys
- Added a brief security considerations section.
- Updated references to latest SSH drafts.

Also, does anyone have a good, normative reference on the definition of a
physical BREAK signal?  It doesn't seem to show in
any ITU docs, but I did point to a good website that treats the issue
comprehensively as an Informative reference.

(Does mailing to the list constitute an official submission?  Or are there
more steps I need to take?)

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