Re: default broadcast address


John G Dobnick (jgd@csd1.milw.wisc.edu)
10 Jul 88 01:57:25 GMT


In article <12412750860.11.BILLW@MATHOM.CISCO.COM>, BILLW@MATHOM.CISCO.COM
(William Westfield) writes:

[... elided text...]
> Using the local broadcast address (-1, or 0) seems the best solution,
                                    ^^^^^^^^^^
[...]
> Bill Westfield
> cisco Systems.

In the interests of precision, that should read (255.255.255.255, or 0.0.0.0).
On *my* machine, "-1" is 255.255.255.254, as it is 1's complement.

This is an easy trap to fall into, and vendors especially should be
particularly careful about this.

--
John G Dobnick
Computing Services Division @ University of Wisconsin -	Milwaukee
UUCP: <backbone>!uwvax!uwmcsd1!jgd
INTERNET: jgd@csd4.milw.wisc.edu

All the world's not a VAX, nor is it all 2's complement!

--
John G Dobnick
Computing Services Division @ University of Wisconsin -	Milwaukee
UUCP: <backbone>!uwvax!uwmcsd1!jgd
INTERNET: jgd@csd4.milw.wisc.edu

"Knowing how things work is the basis for appreciation, and is thus a source of civilized delight." -- William Safire



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