Nilo Rivera wrote:
Hi all
I just started using Ethereal and Im amazed with this product. It is
comparable and in some ways better than the 4 different analyzers that
I have.
It is great to hear you say so ...
Im interested in joining ethereal's developement effort!
First: Is there a way to capture from the COM/Serial port in a PC? If
not, has it been discussed? My point is that most telecommunication
WANs use RS-232/RS-449/V.35/etc using HDLC (lapb, etc) protocol. This
way all could be done from a laptop, a Y cable and the proper converter
if necessary. (Im not sure of speed limits / limitations of the com
port and if this makes scence). Even further, would Ethereal work with
the proper pcmcia/usb/... device like:
http://www.sealevel.com/catalog/pcmciab.htm
I have thought a lot about this for some time. The problem is that most
serial devices do not allow you to capture the state of all the data set
signals, and do not give you recieve access on both TxD and RxD (as
received signals).
What you really need is an interface that can sense the state of all the
signals in an V24 or V35 or X.21/G703 or what have you.
A second limitation is that the capture file formats don't allow you to
express the state of data set signals on a per-byte basis, although that
might not be too much of a problem if you can provide frames.
However, it would be a very interesting project.
Second: I see x.25 and ISO 8073 COTP (CCITT/ITU x.224) implemented.
Has there been any plans to fully implement the complete OSI stack
(ISO 7498 or ITU x.200). Is not widely used, but is used...specially
for FTAM transfers. Im interested in adding this with time if no one
is working on it already, or help out. What do you think? Is it worth
the effort? The protocols that would need to be added are:
ISO 8327 Session Protocol ( CCITT / ITU x.225 )
ISO 8823 Presentation Protocol ( CCITT / ITU x.226 )
ISO 8650 ACSE( CCITT / ITU x.227 )
Maybe a subset of FTAM after these
--
Richard Sharpe, rsharpe@xxxxxxxxxx, LPIC-1
www.samba.org, www.ethereal.com, SAMS Teach Yourself Samba
in 24 Hours, Special Edition, Using Samba