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Davor Spasoski wrote:

> Thank you Stipe,
> 
> Yes, that's the header, however it only gives the IP address of the
> firewall, as it is masquerading the private IP addresses of the handset.
> I was told by the operator that they include the "IP address in the cookie
> headers appended by Ericsson MIEP (some proxy) to any cookie of the HTTP
> server". Don't know what this means, but here's an example they gave me:
> 
>  cookie:
> 
> $Version=0;User-Identity-Forward-msisdn=333036393734333533353634;
> 
> User-Identity-Forward-userid=3734333533353634;
> 
> User-Identity-Authentication=Bearer;
> 
> ip-address=10.10.10.132;
> 
> Bearer-Type=w-TCP;
> 
> wtls-security-level=none;
> 
> network-access-type=CSD;
> 
> nas-ip-address=192.168.254.1;
> 
> Called-station-id=35303030303030;
> 
> accounting-session-id=00514BFB

ok, obviously they prove all the relevant "mobile/user information" in this HTTP
Cookie header.

This is interesting, since it would mean that the Ericsson MIEP (never got in
touch with that beast yet ;) is actively re-writing the WSP/WTP UDP datagrams
and injects this Cookie header into the headers the mobile sends to the WAP gw.

Obviously the User-Identity-Forward-userid or -msisdn contains the full MSISDN
of the user/mobile. and ip-address it's client IP at the time of request?

I'd be interested into seeing this as tcpdump capture? Could you provide a
sniffed capture file via tcpdump on the machine that is running Kannel?

I suggest passing this to me private (outside of the list), for security policy
reasons. Please do this as root user:

  $ /usr/sbin/tcpump -s 1500 -w /tmp/wap-traffic.cap -i eth0 udp

and do some WAP requests that go via the box, then ctrl-c to end. The resulting
/tmp/wap-traffic.cap is of interest for reviewing to see exactly what this
Ericsson component sends.

Kind regards,
Stipe

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tolj.org system architecture      Kannel Software Foundation (KSF)
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