how to isolate the two subnets on TP-Link WR840N

how to isolate the two subnets on TP-Link WR840N

how to isolate the two subnets on TP-Link WR840N
how to isolate the two subnets on TP-Link WR840N
2024-01-24 08:29:19 - last edited 2024-01-25 03:40:59
Model: TL-WR840N  
Hardware Version: V6
Firmware Version: 0.9.1 4.19 v0001.0 Build 221117 Rel.32743n

I have a simple home LAN that consists of one router without WLAN.

 

I want to share internet connection with a second router so that devices that connect to the second router can't communicate with devices that are plugged in the first router.

 

I have connected a second router (TP-Link WR840N) by connecting UTP cable from my main router's LAN port to my second router WAN port. It is set to Router mode.

 

Main router's IP address is 192.168.8.1

Second router's IP addresss is 192.168.9.1 and I have configured gateway and DNS as 192.168.8.1 and DHCP as 192.168.9.100-192.168.9.199

 

I want to block communication between the two subnets, so that devices that connect to second router via WiFi can have internet connection but can't communicate with devices on the main LAN (192.168.8.X).

 

I tried by configuring Guest option, but I can still reach my main LAN through it.

 

 

 

 

*** EDIT - SOLUTION *** - IS THERE A BETTER ONE?

 

I managed to do it via Access Control

 

here are the steps:

 

1.

In Access control - Rule:

- enable internet access control

- allow the packets ...

SAVE

 

2.

In Access control -> Target:

- add new:

mode: IP Address

description: "mainLAN"

IP Address: 192.168.8.2-192.168.8.255    (note: 192.168.8.1 shouldn't be blocked because it's the internet gateway address)

SAVE

 

3.

In Access control - Rule:

- Add New

description: blockingmylan

Lan Host: Any Host

Target: mainLAN (Add target: mainLAN, previously configured)

Schedule: any time

Rule: deny

Status: Enabled

Direction: OUT

Protocol: ALL

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Re:how to isolate the two subnets on TP-Link WR840N-Solution
2024-01-24 09:21:11 - last edited 2024-01-25 03:40:59

  @Noobisha 

 

You can try to restrict access to router 1 LAN by using the Access Control:

On router 2 enable Access Control with allow default filtering rule:

 

and Save.

Create a Target and Save:

 

 

On router 2 add a rule with these settings:

 

 

and add the previously created Target to this rule. Save and test if that works for you.

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Re:how to isolate the two subnets on TP-Link WR840N-Solution
2024-01-24 09:21:11 - last edited 2024-01-25 03:40:59

  @Noobisha 

 

You can try to restrict access to router 1 LAN by using the Access Control:

On router 2 enable Access Control with allow default filtering rule:

 

and Save.

Create a Target and Save:

 

 

On router 2 add a rule with these settings:

 

 

and add the previously created Target to this rule. Save and test if that works for you.

If this was helpful click once on the arrow pointing upward. If this solves your issue, click once the star to mark it as a "Recommended Solution".
Recommended Solution
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Re:how to isolate the two subnets on TP-Link WR840N
2024-01-24 09:23:19

  @terziyski 

 

Thank you for the effort :-)

 

I just did the same and it works.

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Re:how to isolate the two subnets on TP-Link WR840N
2024-01-24 09:25:39

  @Noobisha 

 

Yep, it should -  i just saw your edit when I posted.

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Re:how to isolate the two subnets on TP-Link WR840N
2024-01-27 11:34:20

  @tBerde 

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Re:how to isolate the two subnets on TP-Link WR840N
2024-01-27 11:34:42
Berde
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