Wifi connection logging

**Jim Danner** · 01-03-2008 02:55 PM

Is there a quick way to find out what internet connections the iphone makes? I mean a list of IP addresses or something, not necessarily a full packet sniffer.

**Jim Danner** · 01-03-2008 04:50 PM

Or perhaps someone who has the right tools could compile this for the iPhone: http://sourceforge.net/projects/ipgrab/

**Jim Danner** · 01-04-2008 03:21 AM

Talking to myself here - no problem :p. I found out how to use the tcpdump command from the BSD Subsystem package. So this thing was already on my phone; how convenient. Via terminal/PuTTY it's a matter of issuing a command like

Code:

tcpdump -i en0 -e -A -s 0 -f -p -v > ~/dump.txt

after which traffic is logged in dump.txt until the tcpdump process is killed (which I do with the SysInfo application).

If it's not useful to anyone, never mind.

**Jim Danner** · 01-04-2008 02:07 PM

One more thing...

tcpdump used in the form

Code:

tcpdump -i en0 -s 0 -w ~/dump

(particularly with the -w switch) seems to block internet traffic. There's no response from the DNS server when I have this running. Without -w everything works.

Does anyone know about this and how to remedy it?

**menuevideo** · 01-31-2008 01:07 AM

hey Jim,

I used this method now several times and captured traffic with my ipod. I wanted to
open it with wireshark to get the pcap file. but this doesnt work since 1.1.3 i think

i got another way to get capture the packeges via "Ngrep" wich you have to copy onto your ipod/phone via ssh..... then u start it with term-vt100 or somthing else. this will result in an *.pcap file on the device ^^