Ministry of defence IP address in my phone !

Discussion in 'iPhone' started by JF Mezei, May 4, 2011.

  1. JF Mezei

    JF Mezei Guest

    *3001#12345#* (call) puts your phone into field test mode.

    Choose "PDP Context List"

    Choose "0"

    I then get


    IP Address: 25.62.198.230
    PDP type IP
    Accesspoint name: internet.fido.ca (my APN for data)


    However, when accessing the net, the IP address I get belongs to Rogers.

    Guess who 25.62.198.230 belongs to ?

    inetnum: 25.0.0.0 - 25.255.255.255
    netname: UK-MOD-19850128
    descr: DINSA, Ministry of Defence
    country: GB
    org: ORG-DMoD1-RIPE
    admin-c: MN1891-RIPE
    tech-c: MN1891-RIPE
    status: ALLOCATED PA
    mnt-by: RIPE-NCC-HM-MNT
    mnt-lower: UK-MOD-MNT
    mnt-domains: UK-MOD-MNT
    mnt-routes: UK-MOD-MNT
    source: RIPE # Filtered

    organisation: ORG-DMoD1-RIPE
    org-name: DINSA, Ministry of Defence
    org-type: LIR
    address: Not Published
    Not Published Not Published
    United Kingdom
    phone: +44 (0)30 677 00816
    admin-c: MN1891-RIPE
    mnt-ref: UK-MOD-MNT
    mnt-ref: RIPE-NCC-HM-MNT
    mnt-by: RIPE-NCC-HM-MNT
    source: RIPE # Filtered


    If I were wearing a tin foil hat, I'd say that the UK government is
    monitory data transfers on my Canadian Iphone :) :) :) :)

    If I try to traceroute that IP, it gets to New York and dead-ends there
    (no route to host).


    Anyone know what the "PDP Context List" means and what that IP address
    is about ? Is this some sort of router to which my phone talks to ? And
    why would Rogers/Fido use a UK ministry of defence IP address instead of
    one of their own ?
     
    JF Mezei, May 4, 2011
    #1
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  2. In article <4dc15e29$0$28826$c3e8da3$>,
    JF Mezei <> wrote:

    > *3001#12345#* (call) puts your phone into field test mode.
    >
    > Choose "PDP Context List"
    >
    > Choose "0"
    >
    > I then get
    >
    >
    > IP Address: 25.62.198.230


    I don't believe that address. When I do this check, I get 10.106.161.51,
    which is simply incorrect. That's a local-only IP address, and while
    I've got a router, I know my phone's address is 192.168.0.9. And I know
    my external IP address is in the 206.x.x.x block.

    I don't know where this number comes from but I don't believe you are
    actually using that address, whatever field test mode says.

    --
    Tom "Tom" Harrington
    Independent Mac OS X developer since 2002
    http://www.atomicbird.com/
     
    Tom Harrington, May 5, 2011
    #2
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  3. JF Mezei

    nospam Guest

    In article <tph-6DD7CB.17511404052011@localhost>, Tom Harrington
    <> wrote:

    > > *3001#12345#* (call) puts your phone into field test mode.
    > >
    > > Choose "PDP Context List"
    > >
    > > Choose "0"
    > >
    > > I then get
    > >
    > > IP Address: 25.62.198.230

    >
    > I don't believe that address. When I do this check, I get 10.106.161.51,
    > which is simply incorrect. That's a local-only IP address, and while
    > I've got a router, I know my phone's address is 192.168.0.9. And I know
    > my external IP address is in the 206.x.x.x block.


    i'm getting 10.* on an at&t iphone and 25.* on a t-mobile iphone.
     
    nospam, May 5, 2011
    #3
  4. JF Mezei

    David Empson Guest

    JF Mezei <> wrote:

    > *3001#12345#* (call) puts your phone into field test mode.
    >
    > Choose "PDP Context List"
    >
    > Choose "0"
    >
    > I then get
    >
    >
    > IP Address: 25.62.198.230
    > PDP type IP
    > Accesspoint name: internet.fido.ca (my APN for data)
    >
    >
    > However, when accessing the net, the IP address I get belongs to Rogers.
    >
    > Guess who 25.62.198.230 belongs to ?
    >
    > inetnum: 25.0.0.0 - 25.255.255.255
    > netname: UK-MOD-19850128
    > descr: DINSA, Ministry of Defence
    > country: GB


    [...]

    > If I were wearing a tin foil hat, I'd say that the UK government is
    > monitory data transfers on my Canadian Iphone :) :) :) :)
    >
    > If I try to traceroute that IP, it gets to New York and dead-ends there
    > (no route to host).
    >
    >
    > Anyone know what the "PDP Context List" means


    A "PDP Context" (Packet Data Protocol context) is one IP communication
    stream between your iPhone (or other cell phone) and the cellular
    network. The APN associated with the PDP Context is used by the network
    to locate the appropriate gateway device between the cellular network
    and the rest of the Internet.

    There may be more than one PDP Context, e.g. the iPhone uses one for its
    own data usage, a second one for tethering, and may have a third one for
    MMS.

    > and what that IP address is about ? Is this some sort of router to which
    > my phone talks to ?


    It is the IP address assigned to your iPhone (for that PDP context) by
    the cellular network.

    > And why would Rogers/Fido use a UK ministry of defence IP address instead
    > of one of their own ?


    The problem may be that the whois database is out of date. UK MoD
    originally had a Class A address range (25.x.x.x), but part of it may
    have been relinquished and is now allocated elsewhere.

    Obviously Rogers/Fido thinks it is allowed to allocate that IP address
    to you, and the rest of the Internet is able to talk to you.

    --
    David Empson
     
    David Empson, May 5, 2011
    #4
  5. JF Mezei

    David Empson Guest

    Tom Harrington <> wrote:

    > In article <4dc15e29$0$28826$c3e8da3$>,
    > JF Mezei <> wrote:
    >
    > > *3001#12345#* (call) puts your phone into field test mode.
    > >
    > > Choose "PDP Context List"
    > >
    > > Choose "0"
    > >
    > > I then get
    > >
    > >
    > > IP Address: 25.62.198.230

    >
    > I don't believe that address. When I do this check, I get 10.106.161.51,
    > which is simply incorrect. That's a local-only IP address


    That address is correct. Probably one assigned by your carrier, and they
    will have a NAT router between your iPhone and the rest of the Internet.

    > and while I've got a router, I know my phone's address is 192.168.0.9.


    That might be your iPhone's IP address on its WiFi network connection,
    which has nothing to do with its IP address on the cellular connection.

    My iPhone currently has at least three IP addresses (iPhone data over
    cellular, tethering data over cellular, and the local IP address used to
    talk to the computer for tethering). If it was connected to a WiFi
    network it would have a fourth IP address.

    > And I know my external IP address is in the 206.x.x.x block.


    That's probably your home broadband connection, which again has nothing
    to do with the IP address of your iPhone's cellular connection.

    > I don't know where this number comes from but I don't believe you are
    > actually using that address, whatever field test mode says.


    Other independent reports of IP addresses being used by my iPhone agree
    with the numbers shown in Field Test Mode.

    --
    David Empson
     
    David Empson, May 5, 2011
    #5
  6. In article <tph-6DD7CB.17511404052011@localhost>,
    Tom Harrington <> wrote:

    > I don't believe that address. When I do this check, I get 10.106.161.51,
    > which is simply incorrect. That's a local-only IP address, and while
    > I've got a router, I know my phone's address is 192.168.0.9. And I know
    > my external IP address is in the 206.x.x.x block.
    >
    > I don't know where this number comes from but I don't believe you are
    > actually using that address, whatever field test mode says.


    I believe that's the IP address from the cell tower.

    --
    Tea Party Patriots is to Patriotism as
    People's Democratic Republic is to Democracy.
     
    Michelle Steiner, May 5, 2011
    #6
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