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Prone for Man in the Middle attack VLAN 1 (DEFAULT) cannot be disable.

Shadowrelic7

2025-02-03 01:45:21 - last edited 2 weeks ago

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Registered: 2025-01-20

Prone for Man in the Middle attack VLAN 1 (DEFAULT) cannot be disable.

2025-02-03 01:45:21 - last edited 2 weeks ago

Tags: #VLAN & Multi-Networks

Model: ER605 (TL-R605)

Hardware Version: V2

Firmware Version: 2.2.6

Good day.

I Would like to share with you on the DEFAULT VLAN which is VLAN 1.

When we decide to make a management vlan, The defualt vlan 1 should not be included in the trunk.

but unfortunately, the vlan 1 cannot be disable nor cannot be configured.
this is not safe. I can still ping the 192.168.0.1 which is the router.

and all the ports on the router are still be able to ping and access the vlan 1.

are there any firmware update on this?

By the way, i am using OC200 on my house.

2 Reply

Clive_A

3 weeks ago

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Registered: 2023-06-09

Re:Prone for Man in the Middle attack VLAN 1 (DEFAULT) cannot be disable.

3 weeks ago

Hi @Shadowrelic7

Thanks for posting in our business forum.

But what does it have anything dangerous if you can only ping the default gateway IP?

When you create multiple VLAN interfaces, the default gateway for each VLAN is also pingable. This is common and normal.

That's the same thing for the Openwrt and other system.

When you block the ping, it could also affect other services. I have seen cases where you block the ping, you affect other services. You can look it up on the forum.

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Shadowrelic7

LV1

2 weeks ago

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Registered: 2025-01-20

Re:Prone for Man in the Middle attack VLAN 1 (DEFAULT) cannot be disable.

2 weeks ago

@Clive_A Good day. HI Sir. Clive, Thank you for replying. It's Just that the VLan 1 is also trunked which is not be trunk. In my Cisco switches for security purposes, i dont include vlan 1 to pass thru the trunk. but here (referring to the image) you cant even disable or exclude the VLAN 1 to trunk. Thanks you.

Prone for Man in the Middle attack VLAN 1 (DEFAULT) cannot be disable.

Prone for Man in the Middle attack VLAN 1 (DEFAULT) cannot be disable.

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