Figuring out a headless server's zeroconf addr

[Robert Moskowitz]

On 07/22/2014 12:16 AM, Tim wrote:
> On Mon, 2014-07-21 at 12:34 -0400, Robert Moskowitz wrote:
>> I have considerable routing and addressing knowledge.  Besides being
>> one of the authors of rfc 1918, and worked on CIDR, here at IETF I
>> contribute to ipv6ops and ipv6man.
> Sorry, didn't mean to impune you, but I don't remember who's done what,
> so I just took the easy route of asking the obvious question.
>
> The other thing that occurred to me, much later, was zeroconf probably
> requires broadcasting to be allowed through the firewall, so that
> clients can announce themselves, and the rest can notice their arrival.
>

avahi-autoipd -D <interface>

worked on one end.  Can't figure out why it did not on the other.  Fortunately that is my own notebook where I just:

ifconfig enp0s18f2u1 169.254.7.246 netmask 255.255.0.0
route add -net 169.254.0.0 netmask 255.255.0.0 dev enp0s18f2u1 metric 99