Difference between revisions of "Policy Based Routing"
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====Wired WAN Routing Policy Priority Change==== | ====Wired WAN Routing Policy Priority Change==== | ||
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| − | Open WebUI → Network → Routing → Policy based routing → Routing Rules for IPv4 and click [[File:Pencil2.png]] on '''Policy Rule 2''' | + | '''Open WebUI → Network → Routing → Policy based routing → Routing Rules for IPv4''' and click [[File:Pencil2.png]] on '''Policy Rule 2''' |
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Make following changes: | Make following changes: | ||
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[[File:PBRSN.png|border|class=tlt-border|center|]] | [[File:PBRSN.png|border|class=tlt-border|center|]] | ||
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====Creating New Routing Policy Rule==== | ====Creating New Routing Policy Rule==== | ||
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| − | Open WebUI → Network → Routing → Policy based routing | + | Open '''WebUI → Network → Routing → Policy based routing''' |
=====Creating Single Node Routing Table Over WifiWan===== | =====Creating Single Node Routing Table Over WifiWan===== | ||
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#Select Interface: '''WifiWan''' | Enter Target: '''0.0.0.0''' | Enter IPv4-Netmask: '''0.0.0.0''' | Enter IPv4-Gateway: '''192.168.1.1''' | #Select Interface: '''WifiWan''' | Enter Target: '''0.0.0.0''' | Enter IPv4-Netmask: '''0.0.0.0''' | Enter IPv4-Gateway: '''192.168.1.1''' | ||
[[File:PBR_P_ROUTE_111.png|border|class=tlt-border|center|1000x300px]] | [[File:PBR_P_ROUTE_111.png|border|class=tlt-border|center|1000x300px]] | ||
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====Routing Rules for IPv4==== | ====Routing Rules for IPv4==== | ||
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====Testing the Policy Route==== | ====Testing the Policy Route==== | ||
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| + | [[File:POLICY_ROUTE.png|border|class=tlt-border|center]] | ||
Latest revision as of 16:01, 1 July 2024
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 to customize routing decisions according to various factors.
With policy-based routing 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:
- 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.These interfaces have to be preconfigured.
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.
Configuring VLANs
Open router‘s WebUI and navigate to Network → VLAN → Port Based configuration:
Port based VLAN
Add new VLANs by clicking 
and Make following changes:
- VLAN ID: 1 | lan1: Untagged | Lan2: Off | Lan3: Off | lan4: Untagged | Wan: Off
- VLAN ID: 3 | lan1: Off | Lan2: Untagged | Lan3: Off | lan4: Off | Wan: Off
- VLAN ID: 5 | lan1: Off | Lan2: Off | Lan3: Untagged | lan4: Off | Wan: Off
Configuring Different LAN Networks
Open router’s WebUI → Network → LAN click 
on current available LAN interface configuration:
LAN1 General Settings
Make the following changes:
- Enter Name : LAN_VLAN_ETH0
LAN1 Physical Settings
Make the following changes:
- Select Interface : eth0
Add new LAN netwrok by clicking and Make following changes:
LAN2 General Settings
Make the following changes:
- Enable Interface: on
- Enter Name : LAN_VLAN_3
- Enter IPV4 address: 192.168.3.1
- Select IPV4 netmask: 255.255.255.0
- Enable DHCPv4: on
LAN2 Physical Settings
Make the following changes:
- Select Interface : eth0.3
Add new LAN netwrok by clicking and Make following changes:
LAN3 General Settings
Make the following changes:
- Enable Interface: on
- Enter Name : LAN_VLAN_5
- Enter IPV4 address: 192.168.5.1
- Select IPV4 netmask: 255.255.255.0
- Enable DHCPv4: on
LAN3 Physical Settings
Make the following changes:
- Select Interface : eth0.5
After configuring all LAN interfaces the end result should look something like this:
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:
- Enter ID: 1
- Enter New configuration name: WifiWan
click in the new window make following changes:
Static IPv4 Routes
click and aplly this to the route:
- Select Interface: WifiWan | Enter Target: 0.0.0.0 | Enter IPv4-Netmask: 0.0.0.0 | Enter IPv4-Gateway: 192.168.1.1 (Note: Use the Wi-Fi network's gateway. The current LAN gateway in use is 192.168.100.1. However, the correct gateway to route correctly will be the next hop address. This means the router gateway providing the Wi-Fi WAN should be used. In my case, this gateway is 192.168.1.1.)
Creating Wired Wan Routing Table
Add new instance:
- Enter ID: 3
- Enter New configuration name: WiredWan
click in the new window make following changes:
Static IPv4 Routes
click and aplly this to the route:
- Select Interface: wan | Enter Target: '0.0.0.0 | Enter IPv4-Netmask: 0.0.0.0 | Enter IPv4-Gateway: 192.168.3.1
Creating Mobile Wan Routing Table
Add new instance:
- Enter ID: 5
- Enter New configuration name: MwWan
click in the new window make following changes:
Static IPv4 Routes
click and aplly this to the route:
- Select Interface:mob1s1a1 | Enter Target: '0.0.0.0 | Enter IPv4-Netmask: 0.0.0.0
Creating Routing Rules for IPv4
Routing Rules for IPv4
By clicking create 3 rules under Routing Rules for IPv4 tab apply these changes to the rules:
Policy Rule 1
- Enter Priority: 1
- Select Incoming interface: LAN_VLAN_ETH0
- Select Outgoing interface: None
- Select Matched Traffic Action: Lookup Table
- Lookup Table: WifiWAN(1)
Policy Rule 2
- Enter Priority: 1
- Select Incoming interface: LAN_VLAN_3
- Select Outgoing interface: None
- Select Matched Traffic Action: Lookup Table
- Lookup Table: WiredWan(3)
Policy Rule 3
- Enter Priority: 1
- Select Incoming interface: LAN_VLAN_5
- Select Outgoing interface: None
- Select Matched Traffic Action: Lookup Table
- Lookup Table: MWan(5)
NOTE: Delete all Autimatic or unrelated routing rules
Configuration testing
Connect end device to physical port that is assingned to different routing policy. Open cmd and run this command: tracert 8.8.8.8, three physical ports that we assigned to diffrent Vlans route to 8.8.8.8 should be using different gateways.
Physical Port 1 Test Result
Physical Port 2 Test Result
Physical Port 3 Test Result
Policy Based Routing on a single Host
Single Host Routing Topology
Wired WAN Routing Policy Priority Change
Open WebUI → Network → Routing → Policy based routing → Routing Rules for IPv4 and click on Policy Rule 2
Make following changes:
- Set Priority: 2
Creating New Routing Policy Rule
Open WebUI → Network → Routing → Policy based routing
Creating Single Node Routing Table Over WifiWan
Add new instance:
- Enter ID: 7
- Enter New configuration name: Node
click in the new window make following changes:
Static IPv4 Routes
click and aplly this to the route:
- Select Interface: WifiWan | Enter Target: 0.0.0.0 | Enter IPv4-Netmask: 0.0.0.0 | Enter IPv4-Gateway: 192.168.1.1
Routing Rules for IPv4
By clicking create rule under Routing Rules for IPv4 tab apply these changes to the rules:
Policy Rule 4
- Enter Priority: 1
- Select Incoming interface: LAN_VLAN_3
- Select Outgoing interface: None
- Enter Source subnet: 192.168.3.246/32
- Select Matched Traffic Action: Lookup Table
- Lookup Table: Node (7)
Testing the Policy Route
