TP-LINK firmware features
This guide will let you know the tools required to install, in order to mimic some original features you miss from the original firmware, when upgrade to OpenWrt. TP-Link naming scheme is, that numbers behind the comma, refer to changes in the firmware only, the hardware is identical.
Even if you didn't install LuCI is nice to have
This feature lets you access LuCI pointing your browser to http://tplinklogin.net
Editing /etc/hosts file
Not recommended, because dnsmasq runs as nobody and /etc is reserved for root access.
echo 192.168.1.1 tplinklogin.net >> /etc/hosts
Adding UCI domain
uci add dhcp domain
uci set dhcp.@domain[-1].name=tplinklogin.net
uci set dhcp.@domain[-1].ip=192.168.1.1
uci commit dhcp
Using LuCI WebUI