Hi Anselm,
Anselm Martin Hoffmeister wrote:
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Am Dienstag, 4. Januar 2005 18:09 schrieb Gudmund Areskoug:
Hi again,
Gudmund Areskoug wrote:
Hi guys,
tried searching the doc's and the list archives on behalf of a colleague to find a place to read up on option-128 and option-129 in dhcpd.conf, but couldn't find anything but circumstantial mentions and dhcpd.conf samples.
Does anyone have good pointers where to read up on this?
it seems I at last managed to find *something* on it myself:
http://www.portx.qc.ca/ve2bse/utils/etherboot2/vendortags.html
For anyone else looking to learn more about this, the options 128 and 129 seem to refer to tags/vendor tags in bootp/etherboot. Just starting to scratch the surface...
http://www.etherboot.org/doc/html/userman/a838.html
is probably the most authoritative source.
Menu stuff is not too much supported anymore though, as etherboot has had an external menuing facility for some time. The kernel option passing through option 129 is still there of course.
thanks! Like I said, I'm just starting to scratch the surface. Now I can scratch it in a more appropriate place ;).
I hope I (or someone) find the time to find out how to suggest adding a pointer about this to the right place(s?) in the LTSP docs.
Perhaps an entry about the need for option-128 and option-129 in certain circumstances (clients with ISA NIC's) and a corresponding dhcpd.conf example (like the one I found in the archives, snippet below) could be accompanied by an explanation that "The options 128 and 129 refer to "vendor tags" in etherboot. See http://www.etherboot.org/doc/html/userman/a838.html.";
Example snippet: # If you need to pass parameters on the kernel command line, you can # do it with option-129. In order for Etherboot to look at option-129, # you MUST have option-128 set to a specific value. The value is a # special Etherboot signature of 'e4:45:74:68:00:00'. # # Add these two lines to the host entry that needs kernel parameters # # option option-128 e4:45:74:68:00:00; # NOT a mac address # option option-129 "NIC=ne IO=0x300";
Telling something about e4:45:74:68 translating into �Eth might perhaps dissolve some of the "magic" too.
BR, Gudmund
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