emerge sync resolves hostname to ip before running rsync which doesn't allow for using ipv6: SYNC="rsync://ftp.snt.utwente.nl/gentoo-portage" >>> starting rsync with rsync://130.89.175.1/gentoo-portage... ftp.snt.utwente.nl resolves to 130.89.175.1 and 2001:610:1908:8000::175:1 Reproducible: Always Steps to Reproduce: 1. Set SYNC to a hostname that has an AAAA record 2. emerge sync Actual Results: The hostname is resolved and passed to rsync as an ipv4 ip. Expected Results: Pass the hostname directly to rsync so it can use ipv6 if available. rsync currently has no syntax for IPv6 literal addresses (http://samba.anu.edu.au/ftp/rsync/TODO -- "Other IPv6 stuff:")
*** This bug has been marked as a duplicate of 37124 ***