Are my ACLs correctly configured?

Are my ACLs correctly configured?

Are my ACLs correctly configured?
Are my ACLs correctly configured?
a week ago
Tags: #ACL

Why is the rule #1 not taking effect?

 

VLAN 10 is my management/admin VLAN so I need for the clients in that VLAN to communicate with all of my other VLANs.

 

The deny rules (#5, #13, and #19) are the ones blocking all access from VLANs 20, 30, and 40 to VLAN 10 (my management/admin VLAN).

 

I tried pinging from VLANs 20, 30, and 40 to any client in my VLAN 10. I cannot ping any client. I cannot even ping VLAN 10's gateway, which is what I want to happen.

 

But why is rule #1 not taking effect?

 

I tried to ping from my server in VLAN 10 to any of the clients in my VLANs 20, 30, and 40. I cannot ping them. I cannot even ping their gateways (10.0.20.1, 10.0.30.1, and 10.0.40.1).

 

This is in Switch ACL, by the way.

 

I also tried to put these in Gateway ACL:

- allow VLAN 10 -> VLAN 20, 30, 40

- deny VLAN 20, 30, 40 -> VLAN 10

 

But as soon as I enable the deny rule, the clients are being kicked out.

 

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Re:Are my ACLs correctly configured?
a week ago - last edited a week ago

  @ceejaybassist 

Switch ACLs are NOT stateful - when you block one direction, it inherently blocks responses as well

 

This is the reason your first rule isnt working - it does in fact allow vlan 10 to reach out to the other....but their responses back are blocked by the rules further down

 

There are some ways around this- but with swtich ACLs it inherently makes it open both ways all the time.

 

If you want the initiation and response to only happen when started from one network, you need to use gateway and switch rule hybrid for more granularity.  I wrote a guide for this, here

 

https://community.tp-link.com/en/business/forum/topic/826294

Main: ER8411 x1, SG3428X x1, SG3452 x1, SG2428LP x1, SG3210 x1, SG2218P x1, SG2008P x3, ES208G x1, EAP650 x6 Remote: ER7206 v2 x1, ER605 v2 x3, SG2008P x2, EAP650 x2, ES205G x1 Controller: OC300
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