FreeBSD's ping Integrates IPv6

Mark Tinka mark at
Fri Jul 2 14:30:59 UTC 2021

On 7/2/21 16:22, Niels Bakker wrote:

> Yes, this broke some of my home network monitoring. Sadly there is no 
> 'ping4' in the system, you have to add -4 to the commandline to return 
> to the common BSD behaviour.

This is a good point, as it's the same reason I discovered this today. A 
transient IPv6 issue on a specific host broke NTP, and when I tried to 
ping the NTP time servers during troubleshooting, it hang for a while 
because IPv6 was broken.


More information about the NANOG mailing list