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

Philip Prindeville philipp_subx at redfish-solutions.com
Fri Jul 12 04:29:20 UTC 2013


On Jul 10, 2013, at 9:01 AM, Brian Utterback <brian.utterback at oracle.com> wrote:

> On 7/10/2013 2:54 PM, Brian Utterback wrote:
> 
> 7.  In the most common case, wanting NTP broadcast packets to be sent out of all interfaces, the admin needs to know the sub-nets and interface addresses for all interfaces on the system when editing the ntp.conf file. Ig directed broadcasts are used, then I would argue that "broadcast" without an address should be taken to mean that ntpd should calculate the directed broadcast address for each interface and use that. Customers hate having unnecessary customizations.

Again, applications don't need to concern themselves with this information.

ioctl(SIOCGIFBRDADDR) will get you this.

-Philip



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