VPN L2TP client configuration โ Router DD-WRT

In the first step, login to your router, launch a browser and type the default IP address of the router: http://192.168.1.1
Go to "Setup" (1) and choose "Basic Setup" (2) tab
In the "Connection Type" field, choose "L2TP" (3) connection
In the "Gateway (L2TP Server)" (4) field, type the name of one of the VPNonline server
In the customer panel you will find the available vpn servers: https://portal.vpnonline.pl
In the "Username" (5) field, type your User Name
In the "Password" (6) field, type your password
In the"Require CHAP" (7) field, select "Yes"
In the "Refuse PAP" (8) field, select"Yes"
In the "Require Authentication" (9) field, select"Yes"
In the "Connection Strategy:" field, select "Keep Alive: Redial Period: 30 Sec" (10)
Go to "Network Address Server Settings (DHCP)" section:
In the "Static DNS" (11) field, type: 208.67.222.222
In the"Static DNS" (12) field, type: 208.67.220.220
Uncheck the box: "Use DNSMasq for DHCP" (13)
Uncheck the box: "Use DNSMasq for DNS" (14)
Uncheck the box: "DHCP-Authoritative" (15)
To save settings, click on "Apply Settings" (16)
To establish VPN session, go to the :"Status" (17) tab, next to "WAN" (18) tab and click "Connect (19)