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Block TCP port from WAN to LAN

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Block TCP port from WAN to LAN

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

SHRM-IT

2022-08-08 05:34:08 - last edited 2022-08-10 05:50:04

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Block TCP port from WAN to LAN

2022-08-08 05:34:08 - last edited 2022-08-10 05:50:04

Tags:

Model: AC500

Hardware Version: V2

Firmware Version:

Dear Support,

I would like to configure my Omanda SDU Cloud to block TCP/UDP ports from the internet to private lan in the office. I only found the configuration is from LAN to WAN.

How do i configure it to block internet ( WAN ) to LAN?

Appreiate your advise.

Thanks

SHRM

9 Reply

Virgo

LV5

2022-08-09 08:48:57

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Re:Block TCP port from WAN to LAN

2022-08-09 08:48:57

@SHRM-IT

What is your current version of the controller?

Mine is 5.4.7, when I go to ACL, choose Direction-----WAN IN.

Here you can set the rule for blocking internet ( WAN ) to LAN.

Just striving to develop myself while helping others.

MR.S

LV5

2022-08-09 09:02:12

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Re:Block TCP port from WAN to LAN

2022-08-09 09:02:12

@Virgo

What router do you have?

this option is removed in site when router is adopted, I have all routers and this is the same on all of it. no direction option.

@Fae

Is this unsupported on routers and when will routers support this function?

d0ugmac1

LV5

2022-08-09 19:02:19

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Re:Block TCP port from WAN to LAN

2022-08-09 19:02:19

@SHRM-IT

An old trick I used is just to port forward those ports I want blocked to non-existent IP addresses.

<< Paying it forward, one juicy problem at a time... >>

Alex789

LV3

2022-08-09 22:25:27

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Re:Block TCP port from WAN to LAN

2022-08-09 22:25:27

@SHRM-IT Isn't all traffic from the WAN blocked to the LAN by default? Am I misreading what you are trying to do?

SHRM-IT

LV1

2022-08-10 01:00:53

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Re:Block TCP port from WAN to LAN

2022-08-10 01:00:53

@d0ugmac1

How do you config the route of all incoming ( internet ) IP ,probing 3389 ,which are undesirable to a non-existing IP? Basically my Omanda version is 4.3.5 and I wish to block those ports from scanning our internal IP...

Thanks

SHRM-IT

LV1

2022-08-10 01:03:54

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Re:Block TCP port from WAN to LAN

2022-08-10 01:03:54

am sorry but I am new to this Cloud device. Basically I do not have a purview of this as there is no log to indicate any WAN address blocked at the perimeter of our router. I do not mind having WAN addresses from accessing but I need to have an overview of the TCP/UDP ports these addresses are probing our internal IP addresses.