ACL with Source IP and Port to Destination IP and Port between VLANs

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ACL with Source IP and Port to Destination IP and Port between VLANs

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ACL with Source IP and Port to Destination IP and Port between VLANs
ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-19 13:18:27 - last edited 2023-10-31 09:20:27
Model: TL-SG3428MP  
Hardware Version: V4
Firmware Version: 4.0.8

Hi,

 

I am trying to limit the access to specific devices and ports from a specific vlan.

 

VLAN1 (all devices) ---- allow ----- > Port 80 on device A in VLAN2

 

So what I know from other Firewalls that I config the Policy by selecting:

  • Source IP / Subnet
  • Source Protocoll
  • Source Port
  • Destination IP / Subnet
  • Destination Protocoll
  • Destination Port

 

I tried to achive it in that way:

I created two IP-Port Groups

 

First IP-Port Group:

Ports 0-65535

Subnet 10.100.0.0/24

 

Second IP-Port Group:

Port 80

Subnet 10.200.0.1/32 (10.200.0.0/24 also tested)

 

and then an ACL by permitting TCP Protocoll from one IP-Port-Group to the other -> does not work.

A tcp network (vlan1) to network (vlan2) acl is working.

 

Do I misunterstood something?

 

Thank you

 

 

 

 

 

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#1
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1 Accepted Solution
Re:ACL with Source IP and Port to Destination IP and Port between VLANs-Solution
2023-09-28 07:53:23 - last edited 2023-10-31 09:20:27

Hi @bsz 

Thanks for posting in our business forum.

Since I don't have this switch model, I used a TL-SG2210MP to replicate this issue.

This switch is not capable of creating that many entries, so I tried a different way to emulate what you reported.

 

 

 

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#9
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9 Reply
Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-20 08:35:47

  @bsz 

 

Did you put the permit rule in the first rule and put the deny-all rule in the last?

How do you test "an ACL by permitting TCP Protocoll from one IP-Port-Group to the other -> does not work"?

Try rebooting the switch to force assign the settings to it.

Just striving to develop myself while helping others.
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#2
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-20 10:25:28

  @Virgo 

Yes, it is the first rule.

It seems that it has no hit. When I put the permit LAN-to-LAN rule behind it, it starts working.

 

How do I know it is not working?

I am loosing access to the website the device is hosting. With the LAN-to-LAN rule I have access.

 

If my logic behind the IP-Port-Group Rule is right, could it be a bug?

An LAN-to-IP-Port-Group rule is also not working.

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#3
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-21 03:53:09

  @bsz 

 

Did you also set a gateway acl or EAP acl?

What is your network layout like? What are the specific ACL settings on the controller? Can you share a screenshot?

Just striving to develop myself while helping others.
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#4
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-21 09:27:15

@Virgo 

 

Overview 

Overview

 

Switch ACL

Switch ACL

 

EAP ACL

EAP ACL

 

Switch and EAP ACL 1

Switch ACL1EAP ACL 1

 

IP-Port Group

IP-Port-Group Webserver

10.20.25.0/24 is also not working

 

IP-Port-Group-LAN

 

As soon as I enable ACL 2 (Network: LAN to WA-IoT) it starts working.

 

 

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#5
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-27 04:49:43

Can someone see a mistake done by me or could it be related to a bug?

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#6
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-28 02:27:31

  @bsz 

 

Have you tested only set the switch ACL? Do not set the EAP ACL.

Just striving to develop myself while helping others.
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#7
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-28 05:33:53
yes, same result
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#8
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs-Solution
2023-09-28 07:53:23 - last edited 2023-10-31 09:20:27

Hi @bsz 

Thanks for posting in our business forum.

Since I don't have this switch model, I used a TL-SG2210MP to replicate this issue.

This switch is not capable of creating that many entries, so I tried a different way to emulate what you reported.

 

 

 

Best Regards! If you are new to the forum, please read: Howto - A Guide to Use Forum Effectively. Read Before You Post. Look for a model? Search your model NOW Official and Beta firmware. NEW features! Subscribe for the latest update!Download Beta Here☚ ☛ ★ Configuration Guide ★ ☚ ☛ ★ Knowledge Base ★ ☚ ☛ ★ Troubleshooting ★ ☚ ● Be kind and nice. ● Stay on the topic. ● Post details. ● Search first. ● Please don't take it for granted. ● No email confidentiality should be violated. ● S/N, MAC, and your true public IP should be mosaiced.
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#9
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Re:ACL with Source IP and Port to Destination IP and Port between VLANs
2023-09-28 12:40:57

  @Clive_A 

Many thanks for your testing.

 

Network to IP-Port Group

and

IP Group to IP-Port Group 

 

seems to work for that example.

 

So it seems that IP-Port Group to IP-Port Group is not working which is not so tragic in that particular case but in general it should work.

 

 

 

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#10
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