[Kea-users] Running Kea with unreliable interfaces?

[Shane Kerr]

Hello,

I had a problem with Kea on a server that has 2 interfaces. One of the
interfaces did not survive a reboot (due to a bogus USB cable, but it
could be any reason). 

Kea did not start because the interface was missing:

2016-02-15 15:03:24.366 ERROR [kea-dhcp4.dhcp4/510] DHCP4_INIT_FAIL failed to initialize Kea server: configuration error using file '/opt/kea-git/etc/kea/kea.conf': Failed to select interface: interface 'wlan-awus036ac' doesn't exist in the system (/opt/kea-git/etc/kea/kea.conf:14:20) (/opt/kea-git/etc/kea/kea.conf:14:20)

This meant that the other network was also missing a DHCP server.
(Luckily this is just my home network, and all other users were at work
or school.)

What's the best way to deal with this potential problem? Should I run
two separate instances of Kea, using different configuration files, one
per interface? Or...?

Cheers,

--
Shane