Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uwm.edu!zaphod.mps.ohio-state.edu!uakari!ames!uhccux!munnari.oz.au!goanna!minyos!rxxgap
From: rxxgap@minyos.xx.rmit.oz (Greg Price)
Newsgroups: comp.sys.encore
Subject: Fiddling IP headers under UMAX V
Keywords: UMAX IP HELP!
Message-ID: <2964@minyos.xx.rmit.oz>
Date: 23 Feb 90 02:04:11 GMT
Organization: RMIT Computer Centre, Melbourne Australia.
Lines: 26


  I have the need to set particular fields in the IP header, in particular
the time to live counter, or the options (to allow a route record). Does 
anyone know how to do this under UMAX V. Root privs are not a concern. It
would also be possible to construct the IP header myself and send it out 
raw, but I need to receive the replies. 

  I have read a number of the manual entries about sockets. The man claims
that raw mode under IP has the IP header automatically prepended to it (which
is undesirable). There are only two address families valid for the socket 
call, neither of them being the raw interface mode.

  Does anyone have any suggestions (within reason)?

Thanks, Greg.

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Greg Price,                                                 Computer Centre,
Systems Programmer.                 Royal Melbourne Institute of Technology,
                                            P.O. Box 2476V, Melbourne. 3001. 
ACSnet:	rxxgap@minyos.xx.rmit.oz               (124 Latrobe St., Melbourne.)
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BITNET:	rxxgap@minyos.xx.rmit.oz.au@CSNET-RELAY         PHONE +61 3 660 2934
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