Policy Based Routing

From Teltonika Networks Wiki

The information on this page is updated in accordance with the 00.07.07.1 firmware version .

Introduction

Policy-based routing (PBR) is a technique used in computer networking to direct network packets based on defined criteria beyond the standard destination-based routing. Unlike traditional routing, which forwards packets solely based on their destination address, PBR allows administrators to customize routing decisions according to various factors such as source address, type of service, protocol, or application.

With policy-based routing, network administrators can implement specific rules or policies to dictate the path that packets should take through the network. This flexibility enables organizations to optimize traffic flow, prioritize certain types of traffic, enforce security measures, and manage network resources more efficiently.

Prerequisites & Topology

Before proceeding with the confuration, ensure that all requirements are met:

  1. Before starting you need to have 3 different WAN connections. In this case we are going to use: Wi-fi WAN, Wired WAN and Mobile WAN.
PBS model.png

Configuration

If you're having trouble finding this page or some of the parameters described here on your device's WebUI, you should turn on "Advanced WebUI" mode. You can do that by clicking the "Advanced" button, located at the top of the WebUI.

Networking rutos manual webui basic advanced mode 75.gif

Configuring VLANs

Open router‘s WebUI and navigate to Network → VLAN → Port Based configuration:

Port based VLAN

Add new VLANs by clicking Add Button.png and Make following changes:

  1. VLAN ID: 1 | lan1: Untagged | Lan2: Off | Lan3: Off | lan4: Untagged | Wan: Off
  2. VLAN ID: 3 | lan1: Off | Lan2: Untagged | Lan3: Off | lan4: Off | Wan: Off
  3. VLAN ID: 5 | lan1: Off | Lan2: Off | Lan3: Untagged | lan4: Off | Wan: Off


PBR VLAN.png

Configuring Different LAN Networks

Open router’s WebUI → Network → LAN click Pencil2.pngon current available LAN interface configuration:

LAN1 General Settings

Make the following changes:

  1. Enter Name : LAN_VLAN_ETH0
PBS LAN1 NAME.png

LAN1 Physical Settings

Make the following changes:

  1. Select Interface : eth0
PBS LAN1 PHYSICAL.png

Add new LAN netwrok by clicking Add Button.png and Make following changes:

LAN2 General Settings

Make the following changes:

  1. Enable Interface: on
  2. Enter Name : LAN_VLAN_3
  3. Enter IPV4 address: 192.168.3.1
  4. Select IPV4 netmask: 255.255.255.0
  5. Enable DHCPv4: on
PBS LAN3 GENERAL.png

LAN2 Physical Settings

Make the following changes:

  1. Select Interface : eth0.3
PBS LAN3 PHYSICAL.png

Add new LAN netwrok by clicking Add Button.png and Make following changes:

LAN3 General Settings

Make the following changes:

  1. Enable Interface: on
  2. Enter Name : LAN_VLAN_5
  3. Enter IPV4 address: 192.168.5.1
  4. Select IPV4 netmask: 255.255.255.0
  5. Enable DHCPv4: on
PBS LAN5 GENERAL.png

LAN3 Physical Settings

Make the following changes:

  1. Select Interface : eth0.5
PBS LAN5 PHYSICAL.png

After configuring all LAN interfaces the end result should look something like this:

PBS LAN CON.png

Configuring Policy Based Routing

Open WebUI → Network → Routing → Policy based routing → Add new instance and create new instances for each available WAN in this case Wi-Fi WAN, Wired-WAN and Mobile:

Creating Wifi Wan Routing Table

Add new instance:

  1. Enter ID: 1
  2. Enter New configuration name: WifiWan
PBS TABLES WIFI.png

click Add Button.png in the new window make following changes:

Static IPv4 Routes

click Add Button.png and aplly this to the route:

  1. Select Interface: WifiWan | Enter Target: '0.0.0.0 | Enter IPv4-Netmask: 0.0.0.0
1000x300px

Creating Wired Wan Routing Table

Add new instance:

  1. Enter ID: 3
  2. Enter New configuration name: WiredWan
PBS WAN ROUTE1.png

click Add Button.png in the new window make following changes:

Static IPv4 Routes

click Add Button.png and aplly this to the route:

  1. Select Interface: wan | Enter Target: '0.0.0.0 | Enter IPv4-Netmask: 0.0.0.0
PBS WAN ROUTE.png

Creating Mobile Wan Routing Table

Add new instance:

  1. Enter ID: 5
  2. Enter New configuration name: MwWan
PBR MOBILE 1.png

click Add Button.png in the new window make following changes:

Static IPv4 Routes

click Add Button.png and aplly this to the route:

  1. Select Interface:mob1s1a1 | Enter Target: '0.0.0.0 | Enter IPv4-Netmask: 0.0.0.0
PBS TABLES WAN.png

Creating Routing Rules for IPv4

Routing Rules for IPv4

By clicking Add Button.png create 3 rules under Routing Rules for IPv4 tab apply these changes to the rules:

Policy Rule 1
  1. Enter Priority: 1
  2. Select Incoming interface: LAN_VLAN_ETH0
  3. Select Outgoing interface: None
  4. Select Matched Traffic Action: Lookup Table
  5. Lookup Table: WanWifi(1)
POLICY RULE 1.png
Policy Rule 2
  1. Enter Priority: 1
  2. Select Incoming interface: LAN_VLAN_3
  3. Select Outgoing interface: None
  4. Select Matched Traffic Action: Lookup Table
  5. Lookup Table: WiredWan(3)
POLICY RULE 2.png
Policy Rule 3
  1. Enter Priority: 1
  2. Select Incoming interface: LAN_VLAN_5
  3. Select Outgoing interface: None
  4. Select Matched Traffic Action: Lookup Table
  5. Lookup Table: MWan(5)
POLICY RULE 3.png

NOTE: Delete all Autimatic or unrelated routing rules

Retrieved from "https://wiki.teltonika-networks.com/index.php?title=Policy_Based_Routing&oldid=127456"