Don't accept IPv4 updates unless we have an IPv4 address.
Don't accept IPv4 updates unless we have an IPv4 address.

woniullb/babeld,boutier/babeld,sudomesh/babeld,Gwendocg/babeldToS,jech/babeld,Drooids/babeld,wlanslovenija/babeld,jech/babeld,wlanslovenija/babeld,tcatm/babeld,dtaht/babeld-shortrtt-metrics,Gwendocg/babeldToS