Invincible29
IS-IT--Management
Gents,
I was looking for some information regarding IPV4 implementation on mobile networks. I have read in detail the IPV4 implementation on mobile networks and also IPV6 theoretical implementation on mobile networks. So here is my analysis so far – For IPV4 on mobile networks.
Mobile networks use NAT for giving dynamic IP addresses to its mobile device users who connect to the internet. On the outside the mobile network operator might have a few external static or dynamic IP addresses. You can get a static external ip address for your mobile device or group of devices but you will have to pay for it. GPRS runs on the back of GSM or UTMS (3G) but looking at GPRS implementation, you have GSGN, SGSN and mobile node all working in harmony in a triangular modulation however where I am lost is with CDRs (call detail record) which are sent by CGF (charging gateway function). Do these records keep a record of internal IP assigned to the mobile device for which the packet was transmitted or not? So far what I have found looking at the format of a CDR is it records the ip of GSGN but not the mobile device. What I am trying to understand is if the mobile users can be traced back from external ip all the way back like reverse lookup? Please note this question is in regards to IPV4 on mobile networks not IPV6.
Can someone please shed some light on this?
Many thanks
V
I was looking for some information regarding IPV4 implementation on mobile networks. I have read in detail the IPV4 implementation on mobile networks and also IPV6 theoretical implementation on mobile networks. So here is my analysis so far – For IPV4 on mobile networks.
Mobile networks use NAT for giving dynamic IP addresses to its mobile device users who connect to the internet. On the outside the mobile network operator might have a few external static or dynamic IP addresses. You can get a static external ip address for your mobile device or group of devices but you will have to pay for it. GPRS runs on the back of GSM or UTMS (3G) but looking at GPRS implementation, you have GSGN, SGSN and mobile node all working in harmony in a triangular modulation however where I am lost is with CDRs (call detail record) which are sent by CGF (charging gateway function). Do these records keep a record of internal IP assigned to the mobile device for which the packet was transmitted or not? So far what I have found looking at the format of a CDR is it records the ip of GSGN but not the mobile device. What I am trying to understand is if the mobile users can be traced back from external ip all the way back like reverse lookup? Please note this question is in regards to IPV4 on mobile networks not IPV6.
Can someone please shed some light on this?
Many thanks
V