[SOLVED] Ministry of defence IP address in my phone !

*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 ?

In article <4dc15e29$0$28826$c3e8da3$ m>,
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/

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.

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

Tom Harrington <> wrote:

> In article <4dc15e29$0$28826$c3e8da3$ m>,
> 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

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.