Re: [tcpm] Fwd: New Version Notification fordraft-gont-tcpm-urgent-data-00
Andrew Yourtchenko <ayourtch@cisco.com> Mon, 10 November 2008 05:40 UTC
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Date: Mon, 10 Nov 2008 06:39:27 +0100
From: Andrew Yourtchenko <ayourtch@cisco.com>
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To: Fernando Gont <fernando@gont.com.ar>
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Cc: tcpm@ietf.org, ah@tr-sys.de, Joe Touch <touch@ISI.EDU>, David Borman <david.borman@windriver.com>, "Eddy, Wesley M. (GRC-RCN0)[VZ]" <Wesley.M.Eddy@nasa.gov>
Subject: Re: [tcpm] Fwd: New Version Notification fordraft-gont-tcpm-urgent-data-00
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On Mon, 10 Nov 2008, Fernando Gont wrote: > At 01:47 a.m. 10/11/2008, Eddy, Wesley M. (GRC-RCN0)[VZ] wrote: > >> I have a question for the authors. The survey you did of different OSes >> and how they handle urgent data is good; did you do any similar study >> of applications and which ones attempt to use urgent data? > > Not yet. > > For open source ones I guess we could simply grep lots and lots of source > files. For others it might be a little bit more difficult. I recall being > told that e.g., MS SQL uses urgent data... and there may be many others... I think it was oracle SQL*Net: http://www.stanford.edu/dept/itss/docs/oracle/10g/network.101/b10776/sqlnet.htm Default is to "use urgent data". I'll try to find an oracle install to see what the "urgent data" constitutes there. One other possible candidate (to be verified) might include Citrix terminal server traffic (the anecdotal evidence taken from snort-users archive, e.g.: http://archives.neohapsis.com/archives/snort/2001-08/0787.html) However, both are "closed domain" applications - i.e., usually both ends of them are under single administrative domain, so regardless of which behaviour they use, standards compliant or not, it can be solved with configuration. The bigger problem is for internet-wide applications, e.g. for FTP, whose ABOR command appears to utilise the TCP Urgent as well. Ironically, the standard command-line ftp client on linux is BSD, so all the "standards-compliant" servers are effectively "broken" by default. There could be some more proprietary apps as well, since the searchable discussion forums on the internet include quite a lot of discussions on this topic from the puzzled application programmers. thanks, andrew _______________________________________________ tcpm mailing list tcpm@ietf.org https://www.ietf.org/mailman/listinfo/tcpm
- Re: [tcpm] Fwd: New Version Notification for draf… David Borman
- [tcpm] Fwd: New Version Notification for draft-go… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Andrew Yourtchenko
- Re: [tcpm] Fwd: New Version Notification for draf… David Borman
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Joe Touch
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Joe Touch
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Joe Touch
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Joe Touch
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Joe Touch
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Stefanos Harhalakis
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Andrew Yourtchenko
- Re: [tcpm] Fwd: New Version Notification fordraft… Anantha Ramaiah (ananth)
- Re: [tcpm] Fwd: New Version Notification fordraft… Eddy, Wesley M. (GRC-RCN0)[VZ]
- Re: [tcpm] Fwd: New Version Notification fordraft… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification fordraft… Andrew Yourtchenko
- Re: [tcpm] Fwd: New Version Notification for draf… Joe Touch
- Re: [tcpm] Fwd: New Version Notification for draf… Fernando Gont
- Re: [tcpm] Fwd: New Version Notification for draf… Joe Touch