X11 Forwarding Fails When IPv6 is Disabled [Resolved]

So, I put the following lines in remote host’s /etc/ssh/sshd_config file.

$ cat /etc/ssh/sshd_config

………………………………

# Workaround to have X forwarding work when ipv6 is disabled
# http://ubuntuforums.org/showthread.php?t=1649657
AddressFamily inet