[ntp:hackers] What does "interface listen wildcard" do?

Danny Mayer mayer at ntp.org
Fri Jul 12 13:22:00 UTC 2013


On 7/10/2013 10:01 AM, Miroslav Lichvar wrote:
> On Tue, Jul 09, 2013 at 12:12:23PM -0400, Brian Utterback wrote:
>> If you are not listening on the wildcard address, on what socket
>> would you expect to receive a broadcast packet that was sent to
>> 255.255.255.255?
> 
> Is this related to the bug https://bugs.ntp.org/show_bug.cgi?id=629 ?
> 
> In the Fedora package I still include the IP_PKTINFO patch to allow packets
> sent to 255.255.255.255 on the IPv4 wildcard socket. I think it worked
> fine the last time I checked.
> 

I don't think all O/S's support that and those that do, not all of them
give you the information you need.

Danny


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