ACLs between vlans do not work as expected

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ACLs between vlans do not work as expected

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ACLs between vlans do not work as expected
ACLs between vlans do not work as expected
2022-01-25 13:50:58
Model: ER605 (TL-R605)  
Hardware Version:
Firmware Version:

The page below describes how you can block vlan to vlan traffic using an ACL:

https://www.tp-link.com/nl/support/faq/3061/

 

"After saving, the ACL takes effect and the computers in the R&D department will never be able to access the Marketing department's network."

 

However, if I add such an ACL, traffic in the other direction is also blocked. So Marketing can no longer access R&D which is not the expected result.

 

Are more people encountering this? Is there a solution or a workaround?

 

Thank you.

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#1
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5 Reply
Re:ACLs between vlans do not work as expected
2022-01-26 05:16:22 - last edited 2022-01-26 05:17:03

@matthijs_ 

ACL will stop the talk even you don't enable bi-directional. Deny A to B will stop the talk between them. There is no way you can do with this even you permit A to B before the Deny rule. I don't see a way to have the unidirectional talk across VLAN. 

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#2
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Re:ACLs between vlans do not work as expected
2022-01-26 19:42:16

@John1234 

 

Thank you for your response.

 

That's too bad. We regularly use this functionality on Watchguard Firebox and Netgate pfSense.

 

Since when creating a rule you are asked to specify a source and destination I assumed that it would only be blocked that way.

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#3
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Re:ACLs between vlans do not work as expected
2022-01-26 21:50:45

@Fae

Are you able to confirm whether or not unidirectional talk across VLAN should be possible?

 

Thank you.

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#4
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Re:ACLs between vlans do not work as expected
2022-04-22 18:06:58

In my experience, at least in standalone mode, it doesn't not block bi-directionally.

When I wanted to stop any traffic between two vlans to both directions, I needed to create two ACL rules for each.

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#5
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Re:ACLs between vlans do not work as expected
2022-06-27 18:59:42

  @Arion 

Yes, that's what I would expect. On the ER605 router?

 

Via another channel, tp-link indicated that this functionality has been intentionally disabled to save processing power on the cheaper models. A solution that was suggested to place a tp-link switch with acl functionality behind the ER605.

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#6
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