[B.P. 7.1.5] - Unable to create remote with alternate address

This happens when 

1. source cluster is ipv4 only or 1pv6 only
2. The hostname in nodeInfo is not in the required IP family and net.LookupIP fails

XDCR should use the address in alternateAdresses section of the nodeInfo but instead, it returns "cannot get hostname from node info ..."