[ntp:hackers] Weekend error report

David L. Mills mills at udel.edu
Fri Oct 8 19:11:24 PDT 2004

Danny and Harlan,

Autokey works on the backroom flock. I have made some minor changes 
there. Is it safe to overwrite pogo:/pogo/dist/ntp4?


Danny Mayer wrote:

> At 02:37 PM 10/8/2004, David L. Mills wrote:
>> Danny,
>> I chased this one down. Very simple problem. With OpenSSL configured, 
>> broadcasts must have the local destination address, so cannot use the 
>> wildcard interface. I thought this was clear from the gitgosh.
>> It is in principle possible to work around this issue, since the 
>> addresses are not necessary for symmetric key cryptography, only 
>> autokey. However, the additional hassle doesn't seem justified and 
>> probably does not simplify the I/O code.
>> The original code, of course, did what was necessary to avoid the 
>> wildcard interface and to suck up the destination address for autokey.
>> Dave
> Dave,
> It's nice to find out that I was right about this. The I/O code that 
> I'm working
> on banishes wildcard addresses altogether, but there are issues about
> deciding whether or not the destination address was a unicasy, broadcast
> or multicast address. I need to sort that out still. In addition I 
> needed to
> write some code to figure out which socket should receive the multicast
> packets. It's all in progress right now but the result will be reliable
> address/cast information.
> Danny

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