[ntp:hackers] Broken things

David L. Mills mills at udel.edu
Thu Oct 28 22:00:31 PDT 2004


Danny,

See the backroom munchkins. None of the Solaribums are receiving 
mulitcast IPv4.

Dave

Danny Mayer wrote:

> Dave,
>         I pushed this around in my mind for a while and I'm not sure I
> understand what is happening here. I'll need to dig deeper here.
>
> Which solbaris are not receiving deacon's signal?
>
> Danny
>
> At 11:26 PM 10/27/2004, David L. Mills wrote:
>
>> Danny,
>>
>> This is on ntp-dev; I haven;t changed anything, especially not the 
>> I/O or crypto code.
>>
>> Solaris deacon sends broadcast IPv4, multicast IPv4 and broadcast 
>> IPv6 using autokey. FreBSD howland receives the IPv4 broadcasts 
>> correctly, but the checksum fails for the IPv6 messages. The reason 
>> for that is the interface code wrote the interface address rather 
>> than the broadcast address on the packet. None of the packets were 
>> processed because an error bit was lit. I'll check that later.
>>
>> Solaris simply does not receive deacon's broadcasts at all. 
>> Apparently, some dude in Oz has configured his machine to send NTP 
>> broadcasts packets to 128.4.2.255, which of course explodes here. 
>> Note the interface code has written zeros on the Solaris machine, but 
>> wrote the interface address for that particular packet on the FreeBSD 
>> machine. Well, if that dude landed on Solaris, why didn't deacon's 
>> broadcasts land?
>>
>> Dave
>>
>> _______________________________________________
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>




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