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How to block access to a LAN/VLAN from a single IP

How to block access to a LAN/VLAN from a single IP

How to block access to a LAN/VLAN from a single IP
How to block access to a LAN/VLAN from a single IP
2 weeks ago - last edited 2 weeks ago
Tags: #Controller #ACL #Firewall
Model: ER605 (TL-R605)  
Hardware Version: V2
Firmware Version: 2.3.0 Build 20250428 Rel.18967

I would like one device (ip 192.168.1.6) to not see other devices in the LAN/VLAN (192.168.1.1) network but at the same time have access to the internet.

Thanks in advance for your help

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1 Accepted Solution
Re:How to block access to a LAN/VLAN from a single IP-Solution
2 weeks ago - last edited 2 weeks ago

  @Svito82 

1. It'll see other devices via ARP.

2. You cannot block ARP. ARP is also subnet-based. So, if you want it not to be seen by other devices, you move it to a different subnet.

3. After moving it to another subnet, you will need a Switch ACL, IP Group based rule, to block it.

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#2
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Re:How to block access to a LAN/VLAN from a single IP-Solution
2 weeks ago - last edited 2 weeks ago

  @Svito82 

1. It'll see other devices via ARP.

2. You cannot block ARP. ARP is also subnet-based. So, if you want it not to be seen by other devices, you move it to a different subnet.

3. After moving it to another subnet, you will need a Switch ACL, IP Group based rule, to block it.

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Controller ACL Firewall
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