I have 2.1.1 up and running and 2 internet connections, cable (wan) and telekom (dsl). They are aggregated to a gatewayGroup to enable failover.
I have to use dynamic dns (https://zonomi.com/app/dns/dyndns.jsp) and when creating a custom entry, I am selecting the gatewayGroup as the interface to monitor.
Unfortunately I cannot select the gatewayGroup as the interface used to send the update from, only wan or dsl. What happens if I select here wan and wan is down? What am I doing wrong?
Thanks a lot in advance,
I fixed that in master a while ago: https://github.com/pfsense/pfsense/commit/31300a95f71b14dcb98c139388205223a36e8c8b
I looked on 2.1 branch, and can't see where the fix was back-ported, so I guess the fix is not in 2.1.1 :'(
Anyway, look at the changes and you should be able to make it happen in 2.1.* - I believe that once you get the gateway group selected, the code that actually does the work underneath will use the selected GWG and do its thing.