TP-LINK W8970 internet with provider EOLO

Hi sorry for my english.I'm not experienced on linux,can you help me configure the router? I installed the latest LEDE on tp-link w8970, but I can not connect to the internet. My Fonera 2.0n (firmware openwrt custom) normally connects to these values: Internet
Connection: pppoe
IP Address: 100.114.91.103
Indirizzo Gateway: 81.174.0.21
Server DNS: 88.149.128.12
mtu 1492
LAN
IP 192.168.1.1
Netmask 255.255.255.0
Server DHCP YES
DNS 0
How set LEDE?
Thanks a lot

Try with Luci....it is much easier to configure.

Thanks for the encouragement but I can not get it working. I tried to enter parameters manually and the gatawey(wrong parameter?????) is not accepted could be the problem?