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Who is my S talking to?

Discussion in 'Model S: User Interface' started by Patrick W, Oct 1, 2017.

  1. Patrick W

    Patrick W Active Member

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    Being curious about who/what my S is communicating with via wifi I've been monitoring the various IP addresses it has send to or received from. I'm surprised that none appear to be Tesla unless Tesla's IPs use names other than Tesla.

    Here's a list from the past day or so. Can any of the computer knowledgable folks here tell me if any are Tesla and why the car might be going to the ones it is?

    Many thanks!

    23.54.253.37 Akamai Technologies, Cambridge, Massachusetts
    35.163.76.154 Amazon.com, Boardman, Oregon
    45.33.103.94 Linode, Atlanta, Georgia
    52.32.53.16 Amazon.com, Boardman, Oregon
    54.239.132.12 Amazon.com, Seattle, Washington
    96.244.96.19 Verizon Fios Business, Elkridge, Maryland
    97.107.128.165 Linode, Newark, New Jersey
    129.6.15.30 National Bureau of Standards, Olney, Maryland
    171.66.97.126 Stanford University, Stanford, California
    172.217.11.238 Google, Jupiter, Florida
    173.225.29.66 Digital Fortress, Hawaii
    192.168.0.1 Verizon Fios Business, Elkridge, Maryland
    198.50.238.156 OVH Hosting, Newark, New Jersey
    205.234.31.13 Quality Technology Services Santa Clara, San Mateo, California
    208.75.89.4 Trit Networks, New York, New York
    212.122.129.20 nacamar GmbH, Germany
    216.58.217.10 Google, Mountain View, California
    239.255.255.250 Unknown
     
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  2. Terry_B58

    Terry_B58 Member

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    Talkative little beastie isn't it?


    On a serious note, I have no idea :D
     
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  3. cwerdna

    cwerdna Active Member

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    Akamai isn't likely too suspicious. Many companies use them to host content.

    See Akamai Technologies - Wikipedia.
    That's probably to sync the clock a time server.

    A quick Google search turned up NIST Internet Time Service.
     
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  4. AllenWong

    AllenWong Member

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    Are you or someone else using the web browser on your Tesla?

    One of the IPs is a web address to some guy's personal website. You.DontLike.Us

    It's the IP for the domain you.dontlike.us

    It lists a bunch of sites hosted on that website, including mayfieldyachtclub.com.

    So... maybe you've been on yacht websites and forgot?

    Anyway, if it is the case, then it would explain the rest of the IPs, since Google is common for ad distribution, and Akamai/Amazon is a common cloud web hosting service.

    This ip looks like it might be part of some Linux time update process: 198.50.238.156

    It showed up in a syslog of some guy's Linux install: Install Updates creates fuzzy screen

    The line was: Jun 27 10:15:15 toddfamily-desktop ntpd[2073]: Soliciting pool server 198.50.238.156

    ntpd is the Network Time Protocol daemon. Meaning linux was trying to update its time. Nothing out of the ordinary.

    This ip is properly your router's IP: 192.168.0.1
     
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  5. boaterva

    boaterva Supporting Member

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    Amazon is more probably AWS than Amazon the storefront. I bet Tesla hosts some servers there. I hope they do rather than waste money on doing it themselves!

    I’ve not seen details on how their insfrastructure is set up, though. Interesting list!
     
  6. DOCAL

    DOCAL Member

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    Some of it would probably be more obvious if you could list the protocol and port numbers.

    The Amazon ones are AWS/EC2 - virtual server hosting.
    The Akamai and Cloudfront ones are for content delivery (file hosting).
    Not sure what the Google (1e100.net) ones are, maybe map related?
    The Stanford, Trit Networks and Bureau of standards are NTP (time) servers.
    192.168.0.1 is likely to be your own router.

    The last one is interesting though, that's a multicast address, most likely used for UPnP.

    If you can get port numbers you'll get more info. Port 123 is NTP, you might find that more of the addresses end up being that.
     
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  7. cwerdna

    cwerdna Active Member

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    Agreed. The whole 192.168.*.* range is reserved for private networks (Private network - Wikipedia) and AFAIK isn't supposed to be routable anyway.

    Access point/routers usually use this range for the router itself and to assign addresses via DHCP to clients within this range on the LAN side. And usually the admin pages for routers are in this range (mine on my Asus router is 192.168.1.1). My Motorola cable modem's status page is at 192.168.100.1.
     
  8. boaterva

    boaterva Supporting Member

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    Of course when we say ‘routable’ we computer people mean ‘externally routable’ (on the Internet). There’s nothing not routable about 192.168.0.0 or 10.0.0.0 or the other ‘internal’ networks, they just can’t be used on the Internet since they are for ‘local’ use such as routers and local hosts.

    Just wanted to clarify that for the non-network people since we all too often use the shorthand ‘non-routable’ when it’s not strictly true! :D
     
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  9. Patrick W

    Patrick W Active Member

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    Wow! Thanks for the great replies. Most was "over my head" but I think I got the gist.

    I was going to get more data including port numbers but for some reason the car is being very quiet tonight.
     
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  10. jt1657

    jt1657 New Member

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    I track what application my car is talking to, not just the IP Addresses. I can tell you most of the traffic is NTP, which as stated above is used for syncing clocks. It is talking to google and amazon AWS which I am sure is where Tesla is keeping all the data it collects. The car also uses a Open-VPN application to connect back to Tesla and for the most part is using SSL when it talks so at least it is encrypting the traffic.
     

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