Block device from accessing BSSID?

Discussion in 'Networking Issues' started by threehappypenguins, Feb 26, 2014.

  1. threehappypenguins

    threehappypenguins Networkin' Nut Member

    I am setting up my friend's network for his kids. I have Tomato firmware running on their Linksys with OpenDNS filtering as well as timed Access Restrictions (ie, no more internet access after 11:30pm). That's all fine and dandy as long as my friend's son's phone stays on his network. However, he is getting access to a friend's router nearby (however, he does not have data on his phone; so I don't need to worry about that).

    In Tomato, I can go to Tools > Wireless Survey and I can see all the BSSID's that are all around their house.

    I want to prevent his phone from connecting to a specific wireless access point. I tried downloading (on my own phone) the Android Firewall app and entering a custom script:

    $IPTABLES -A INPUT -m mac --mac-source 00:00:00:00:00:00 -j REJECT
    Because I am trying to test this on my own phone first, I went into my router (also running Tomato) and saw multiple MAC addresses (nothing that said "BSSID"). I assumed that I should choose the Wireless MAC Address. So when I tried that in my above iptables, I could still access the internet on my phone. So I also tried WAN and LAN Mac Addresses. Still could access the internet. Is there somewhere else that I should be looking for my BSSID? Assuming that is what I need? Or is it the same as the Wireless MAC address? Someone told me
    I don't even know what that means... I'm running Windows on my computer, and I have an Android phone. If I'm going to "pull" something, how do I do that? What, and where do I type it? Or where do I navigate in what?
  2. threehappypenguins

    threehappypenguins Networkin' Nut Member

    I downloaded an app called Network Info II and it showed me that my BSSID is the exact same as my Wireless MAC address. So that answers my question. Now I just need to figure out how to prevent the phone from accessing this specific network...
  3. threehappypenguins

    threehappypenguins Networkin' Nut Member

    I figured things out. For one, after I added the iptable rule, I needed to REBOOT my phone for it to apply (which I wasn't doing). Secondly, I needed to use the LAN Mac Address (NOT the BSSID/Wireless MAC address) in order for the iptable rule to work.

    Thirdly, I downloaded AFWall+. It allowed me to set it as administrator to prevent uninstallation. The only thing missing is that the developer needs to password protect removing the app as administrator.

    Then I downloaded Android Terminal Emulator. In order to find the LAN MAC address for the connection that I am looking to block, I typed this into the emulator:

    arp -n
    Then I used the MAC address that was given in the terminal and put that into this rule here to be place in "custom scripts" in the firewall:

    $IPTABLES -A INPUT -m mac --mac-source 00:00:00:00:00:00 -j DROP
    Last edited: Feb 28, 2014
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