forked from acouzens/open5gs
Use open5gs/open5gs and add description of setting APN.type to IPv4 (#414)
* Adopt tutorial format to dockerized VoLTE lab * Fixed several lines according to Supreeth's feedback * add PCAP analysis to successful calls * set APN type to IPv4 * remove redundant APN screenshots
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@ -22,10 +22,6 @@ minimum-viable environment before actual study can be proceeded.
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**Important notice before you start**
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1. Herle Supreeth's "noipv6" hack of Open5GS is used, because my phone isn't able to
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connect to IMS via IPv6. Even if you choose "IPv4 Only" in APN
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configuration on the UE, Open5GS still allocates an IPv6 address to both APN
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*internet* and *ims*.
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1. Herle Supreeth's fork of Kamailio is used to support IPsec.
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1. Java 7 is downloaded from an alternative location. You have to agree with
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Oracle's term of service and have an Oracle account, to legally use Java SDK
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@ -126,8 +122,12 @@ Password : 1423
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Follow the instructions in [VoLTE Setup](https://open5gs.org/open5gs/docs/tutorial/02-VoLTE-setup/):
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- Step 18, set IMSI, Ki, OP, SQN and APN of your SIM cards.
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**Important!** Set the type of both APN to IPv4. Kamailio does not support VoLTE over
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IPv6 at the moment. (See the screenshot below.)
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- Step 20, add IMS subscriptions to FHoSS.
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![Set both type to IPv4 only](https://raw.githubusercontent.com/miaoski/docker_open5gs/gh-pages/screenshots/subscriber-type-ipv4.png)
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For already running systems, copy SQN from Open5GS and type it in FHoSS. You
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can type SQN in decimal. FHoSS will automagically convert it to hex.
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@ -135,6 +135,7 @@ Pay special attention to copy/paste. You might have leading or trailing spaces
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in FHoSS, resulting in failed connections!
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#### 5. Debugging with Wireshark
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Thanks to Open5GS, the topology is super similar to [SAE on Wikipedia](https://en.wikipedia.org/wiki/System_Architecture_Evolution#/media/File:Evolved_Packet_Core.svg).
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@ -144,10 +145,6 @@ Thanks to Open5GS, the topology is super similar to [SAE on Wikipedia](https://e
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**APN**
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APN Configurations in Open5GS should look like this one.
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![APN Configurations](https://raw.githubusercontent.com/miaoski/docker_open5gs/gh-pages/screenshots/open5gs-subscriber.png)
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On your cellphone, there should be *internet* and *ims*.
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<img src="https://raw.githubusercontent.com/miaoski/docker_open5gs/gh-pages/screenshots/apn-on-cellphone.jpg" width="320" />
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