ipv6 issue with docker pull

does anyone can help with the ipv6, while the ipv4+ipv6 was enabled and the http_proxy was set-up, ca and system proxy can go through this proxy, even in terminal, curl or wget the http_proxy works well. But if i tried docker pull, the traffic cant go with this http_proxy, it shows timeout with ipv6 address that dns resolved. 

check below for http_proxy configs set up by proxy editor,

===cat /boot/config/plugins/community.applications/proxy.cfg===
tunnel=1
port=6152
proxy=http://192.168.10.18
==============================END==============================

======================cat /boot/config/go======================
#!/bin/bash
# Start the Management Utility
/usr/local/sbin/emhttp
echo "export http_proxy=\"http://192.168.10.18:6152\"" >> /etc/profile # Added by ProxyEditor
echo "export https_proxy=\"http://192.168.10.18:6152\"" >> /etc/profile # Added by ProxyEditor
echo "wait=10" >> /root/.wgetrc # Added by ProxyEditor
echo "use_proxy=yes" >> /root/.wgetrc # Added by ProxyEditor
echo "http_proxy=http://192.168.10.18:6152" >> /root/.wgetrc # Added by ProxyEditor
echo "https_proxy=http://192.168.10.18:6152" >> /root/.wgetrc # Added by ProxyEditor
==============================END==============================

=======================cat /etc/profile========================
# /etc/profile: This file contains system-wide defaults used by
# all Bourne (and related) shells.
# limetech - modified for unRAID 'no users' environment
export HOME=/root
cd $HOME

# Set the values for some environment variables:
export MINICOM="-c on"
# limetech - use 'hostname' to get host name instead of from file
#export HOSTNAME="`cat /etc/HOSTNAME`"
export HOSTNAME="`hostname`"
export LESSOPEN="|lesspipe.sh %s"
export LESS="-MR"

# If the user doesn't have a .inputrc, use the one in /etc.
if [ ! -r "$HOME/.inputrc" ]; then
export INPUTRC=/etc/inputrc
fi

# Set the default system $PATH:
PATH="/usr/local/bin:/usr/bin:/bin"

# For root users, ensure that /usr/local/sbin, /usr/sbin, and /sbin are in
# the $PATH. Some means of connection don't add these by default (sshd comes
# to mind).
if [ "`id -u`" = "0" ]; then
echo $PATH | grep /usr/local/sbin 1> /dev/null 2> /dev/null
if [ ! $? = 0 ]; then
PATH=/usr/local/sbin:/usr/sbin:/sbin:$PATH
fi
fi

# Set TERM to linux for unknown type or unset variable:
if [ "$TERM" = "" -o "$TERM" = "unknown" ]; then
TERM=linux
fi

# Set a default shell prompt:
#PS1='`hostname`:`pwd`# '
if [ "$SHELL" = "/bin/pdksh" ]; then
PS1='! $ '
elif [ "$SHELL" = "/bin/ksh" ]; then
PS1='! ${PWD/#$HOME/~}$ '
elif [ "$SHELL" = "/bin/zsh" ]; then
PS1='%n@%m:%~%# '
elif [ "$SHELL" = "/bin/ash" ]; then
PS1='$ '
else
PS1='\u@\h:\w\$ '
fi
PS2='> '
export PATH DISPLAY LESS TERM PS1 PS2

# Default umask.
umask 0

# Append any additional sh scripts found in /etc/profile.d/:
for profile_script in /etc/profile.d/*.sh ; do
if [ -x $profile_script ]; then
. $profile_script
fi
done
unset profile_script
export http_proxy="http://192.168.10.18:6152"
export https_proxy="http://192.168.10.18:6152"
==============================END==============================

=======================cat /root/.wgetrc=======================
wait=10
use_proxy=yes
http_proxy=http://192.168.10.18:6152
https_proxy=http://192.168.10.18:6152
==============================END==============================