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  1. #1
    Untanglit
    Join Date
    Dec 2017
    Posts
    25

    Question Only allow access from specific external devices

    Hello

    I'm new to untangle , just got it up and running last night , I'm trying to block all incoming traffic through a specific port except for my mobile phone or work PC ( or specific devices ) . tried the Mac address but it doesn't work with my phone when it's on 3G .

    Any help with that ?

  2. #2
    Master Untangler
    Join Date
    May 2010
    Location
    Texas, USA
    Posts
    712

    Default

    I think most people would setup a VPN for that use case... When you want to connect from the authorized devices, you connect via the VPN.

    You can't filter incoming traffic on MAC, as that information isn't available at packet creation time - as you already discovered. All that is available to filter on with incoming traffic is IP - which is going to change regularly when you are on the mobile network... That is true of all firewall/perimeter security devices.

    That is one of the big reasons why VPNs exist.

  3. #3
    Untangler jcoffin's Avatar
    Join Date
    Aug 2008
    Location
    Sunnyvale, CA
    Posts
    9,668

    Default

    If your Untangle is set to NAT (router mode) all incoming traffic is blocked always.
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