Only add 6rd rules if there is an IPv4 IP defined for the gateway, otherwise ruleset ends up invalid. Ticket #4935
Only add 6rd rules if there is an IPv4 IP defined for the gateway,
otherwise ruleset ends up invalid. Ticket #4935

phil-davis/pfsense,NewEraCracker/pfsense,ptorsten/pfsense,ch1c4um/pfsense,ptorsten/pfsense,NOYB/pfsense,brunostein/pfsense,pfsense/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,brunostein/pfsense,ch1c4um/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,BlackstarGroup/pfsense,NewEraCracker/pfsense,NOYB/pfsense,dennypage/pfsense,ch1c4um/pfsense,pfsense/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,jxmx/pfsense,brunostein/pfsense,jxmx/pfsense,pfsense/pfsense,dennypage/pfsense,pfsense/pfsense,phil-davis/pfsense,jxmx/pfsense,dennypage/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,ptorsten/pfsense,NOYB/pfsense