/OpenWrt

OpenWrt - Using O2 6431 Box

Introduction

Here i will be working on the project openwrt in which, i will change the router original firmware to OpenWrt, i will show the steps needed without using serial connection, just only using the network cable. The router has a DSL port, and 4 Network ports, i will configure the router to use LAN1 to connect to Internet through another router, in addition to creating a rescue configuration using LAN4, that will be connected to a VPN server for telephony and gaming purposes. For a full telephony experience, we will install asterisk and configure to use the telephony port.

Table Of Contents

Flashing

In the following webpage, there is the firmware that should be used. https://openwrt.org/toh/arcadyan/vgv7510kw22

1- Step 1 - Flash a working openwrt

2- Step 2: Use complete available Flash area Up till now not all the available flash area is available, because some is used by old configurations. We will use it in this section.

Create a Resuce Port

I will use LAN4 for a rescue function with custom router ip of 10.10.10.10, so that if i lose connection to the router, i can setup a static ip of my pc to 10.10.10.15 and connect to the router but it should give you a dynamic ip in this range.

In Network-> Switch 
-------------------
	click on Add VLAN to a add a new VLAN zone
	Set LAN 4 to be untaged in VLAN ID 3 and off in VLAN ID 1
	Set CPU eth0 to be taged in VLAN ID 3
	Click on Save and Apply

In Network-> Interface 
----------------------
	click on Add new interface
	New Interface name: Rescue
	Protocol: Static address
	Interface: in custom search for eth0.3
	Click Save, and this will open a next configuration window for Resuce Interface

General Settings:
--------------------	
	IPv4 address: 10.10.10.10
	IPv4 netmask: 255.255.255.0
	Ipv6 assignment length: 60

Advanced Settings:
------------------
	Use buildin IPv6-management: yes
	Force link: yes

Physical Settings:
------------------
	Check Interface is set to eth0.3

Firewall Settings:
------------------
	Firewall zone: select Lan

DHCP Server
-----------
click on Setup DHCP Server
	
	General Setup:
	--------------
	Start: 100
	Limit: 150
	Lease time: 12h
	
	Advanced Settings:
	------------------
	Dynamic DHCP: yes
	
	IPv6 Settings:
    --------------
    Router Advertisment-Service: server mode
    DHCPv6-Service: server mode
    NDP-Proxy: disabled
    DHCPv6-Mode: statesss+stateful 
    
    Save and Apply

Now when i connect to port 4, i get ip 10.10.10.133 and can ping 10.10.10.10 sucessfully Also i can connect to the router under 192.168.1.1

Connect Internet through LAN 1

Now i will configure LAN1 port to be used as Internet source connected to a second router.

  • In Network-> Switch Create a new VLAN using Add VLAN, this will add VLAN Id 4 Set CPU(eth0) in VLAN ID 4 to taged Set LAN1 in VLAN ID1 to off (Remove LAN1 from VLAN ID1) Set LAN1 in VLAN ID4 to untaged Save and apply

  • In the Network->Interfaces Click on add a new interface, this will open an interface window

      Name: WAN2
  Protocol: DHCP client
  Bridge: unchecked
  Interface: eth0.4
  
  Click on Create Interface: This will open Interfaces >> WAN2 window
  
  	General Settings:
  		HostName: InternetPort
  		Protocol: DHCP Setting
  	Physical Settings:
  		Bridge interfaces: yes			 
  		Interface: eth0.4 and search for radio0.network1
  	Firewall Settings:
  		Zone: Wan

  Save and apply, disconnect the network on LAN1 and Connect LAN1 port to the internet

    now you will have an internet connection over LAN1