cd /i-data/md0/admin/zy-pkgs
wget http://downloads.zyxel.nas-central.org/Users/Mijzelf/zypkg-repo/MetaRepository_20140529_arm_010.zpkg
cd ~/temp
wget http://downloads.zyxel.nas-central.org/Users/Mijzelf/zypkg-repo/ZYPKGS
#copy MetaRepository from ~/temp/ZYPKGS within /i-data/md0/admin/zy-pkgs/ZYPKGS
#web_prefix: insert as first line "http://downloads.zyxel.nas-central.org/Users/Mijzelf/zypkg-repo/NSA310/4.70/zypkg/"
cd /usr/local/zy-pkgs/zypkg_conf
touch status
touch /i-data/md0/admin/zy-pkgs/ZYPKGS 
touch /i-data/md0/admin/zy-pkgs/web_prefix 
#go to Firmware/Packages (only press Package tab, don't Retrieve List From Internet)
#install & start MetaRepository
#notice the new page:
#http://192.168.1.31:82/pkg/MetaRepository/pkgcgi.cgi
#wait 5s
#press Retrieve List From Internet button

#Help for tools:
#http://zyxel.nas-central.org/wiki/3rd_party_zypkgs#Tweaks