Why does my iPhone connect to 17.171.232.81

M

matthijst

macrumors 6502

Original poster

Jun 8, 2009

266

242

• Nov 10, 2011

• #1

My iPhone 4S keeps connecting to 17.171.232.81 even though I turned of all iCloud settings, facetime, find my iPhone and notifications...

Anyone know what IP this is?

 

Gav2k

macrumors G3

Jul 24, 2009

9,216

1,608

• Nov 10, 2011

• #2

Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

It's defiantly apple!

 

bradl

macrumors 603

Jun 16, 2008

5,972

17,484

• Nov 10, 2011

• #3

matthijst said:

My iPhone 4S keeps connecting to 17.171.232.81 even though I turned of all iCloud settings, facetime, find my iPhone and notifications...

Anyone know what IP this is?

Click to expand...

bradl@bellicha:~> dig -x 17.171.232.81

; <<>> DiG 9.7.4 <<>> -x 17.171.232.81
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 14612
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;81.232.171.17.in-addr.arpa. IN PTR

;; AUTHORITY SECTION:
17.in-addr.arpa. 900 IN SOA gridmaster-ib.apple.com. hostmaster.apple.com. 2010075772 1800 900 2592000 900

;; Query time: 1084 msec
;; SERVER: 192.168.1.254#53(192.168.1.254)
;; WHEN: Thu Nov 10 23:38:06 2011
;; MSG SIZE rcvd: 114


There you go.

BL.

 

M

matthijst

macrumors 6502

Original poster

Jun 8, 2009

266

242

• Nov 11, 2011

• #4

Yeah, but WHY does it connect to it?

 

hakr100

macrumors 6502a

Mar 1, 2011

967

113

East Coast

• Nov 11, 2011

• #5

"iPhone phone home..."

 

D

dotme

macrumors 65816

Oct 18, 2011

1,231

285

Iowa

• Nov 11, 2011

• #6

And youre settings for Diagnostics and Usage are?....

 

P

PacketPaul

macrumors newbie

Oct 25, 2011

15

0

• Nov 11, 2011

• #7

matthijst said:

Yeah, but WHY does it connect to it?

Click to expand...

Think of it as a test to validate the network connection. By checking for network connectivity the phone will know if you have access to the internet.

Another reason is some WiFi hot spots contain a captive portal. Apple is "calling home" simply to give you the opportunity to authenticate with the captive portal.

A captive portal is simply a splash screen used at some public WiFi spots which allow you to authenticate or simply agree to the terms and conditions. If you do not authenticate with the captive portal, the phone will be unable to access the internet.