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iqi's avatar
iqi
Aspirant
May 22, 2022
Solved

RBR850 - Need help preventing internet access to a NAS device

I used to have an Asus router for the longest time - it had ability for me to configure certain devices (e.g. NAS) from accessing the internet. But devices within the network could access the NAS. 

I got the Orbi RBR 850 + satellite - i've been combing through the product manual and other forums online but haven't been able to find my way to such a configuration. with an expensive router, I would have thought this would be a no brainer. 

Am I missing anything? or does the Orbi not have this feature? The only thing I could find within the Orbi was the "block services" - using this prevents all devices on the network from accessing the NAS device too which is not what I want. 

  • The tests I have run do not support that assertion.

     

    I set up total blocks on two computers on my network.

    'Any', ports 1-65535, IP address, and 'Always'.

    After clearing cache and the hosts file, neither computer could reach anything on the internet.

    No web sites, no software update sites, etc.

    (Note that 'ping' [ICMP] is neither TCP nor UDP, so service blocking does not stop ping.)

    However, both computers could reach web sites on my LAN (printer and Pi-hole DNS server)

    I could telnet into the Pi-hole, which is how I know that it was 'dead' on the internet.

     

    So, local access in/out of the blocked computers - fine.  Internet access out of the blocked computers - dead.

     

    Was this the service block that you set up on the NAS and it failed to work?

    (My ancient RBR50 Orbi may not be identical to your more recent model.)

6 Replies

  • I believe what you want is on the Advanced Tab, Security, Block Services.

    Create a rule to Block starting at port 1 and ending at port 65535 for the IP address of the NAS.

    Set schedule to "Always".

    Apply.

     

     

    • CrimpOn's avatar
      CrimpOn
      Guru

      This means, of course, that the NAS will not be able to update firmware unless you temporarily remove the block.

    • iqi's avatar
      iqi
      Aspirant

      Thanks CrimpOn. But as I said, that's not what I want. "Block services" blocks access to the NAS from local network devices. the requirement is:

      - NAS should not be able to access traffic to the internet

      - NAS should be able to communicate with local network devices

       

      • The tests I have run do not support that assertion.

         

        I set up total blocks on two computers on my network.

        'Any', ports 1-65535, IP address, and 'Always'.

        After clearing cache and the hosts file, neither computer could reach anything on the internet.

        No web sites, no software update sites, etc.

        (Note that 'ping' [ICMP] is neither TCP nor UDP, so service blocking does not stop ping.)

        However, both computers could reach web sites on my LAN (printer and Pi-hole DNS server)

        I could telnet into the Pi-hole, which is how I know that it was 'dead' on the internet.

         

        So, local access in/out of the blocked computers - fine.  Internet access out of the blocked computers - dead.

         

        Was this the service block that you set up on the NAS and it failed to work?

        (My ancient RBR50 Orbi may not be identical to your more recent model.)