EAP-5G decoding issue for NWu interface(Ue and N3IWF) for 5G wifi calling
Hi Interface: NWu Entities; UE and N3IWF
In 5G for vowifi Standalone solution N3IWF is introcuded which is enhancement of epdg in 4G.
EAP is enhanced to have EAP 5G-start flow whenever IKE_AUTH is received without authentication payload.
Wireshark is not decoding this EAP section within the IKE session
Internet Security Association and Key Management Protocol
Initiator SPI: f431f77100000000
Responder SPI: ba2aa92d8af41601
Next payload: Identification - Responder (36)
Version: 2.0
Exchange type: IKE_AUTH (35)
Flags: 0x20 (Responder, No higher version, Response)
Message ID: 0x00000001
Length: 97
Payload: Identification - Responder (36)
Next payload: Extensible Authentication (48)
0... .... = Critical Bit: Not critical
.000 0000 = Reserved: 0x00
Payload length: 51
ID type: FQDN (2)
Reserved: 000000
Identification Data:n3iwf.epc.mncxxx.mccxxx.pub.3gppnetwork.org
Payload: Extensible Authentication (48)
Next payload: NONE / No Next Payload (0)
0... .... = Critical Bit: Not critical
.000 0000 = Reserved: 0x00
Payload length: 18
Extensible Authentication Protocol
Code: Request (1)
Id: 0
Length: 14
Type: Expanded Type (254)
Expanded Type
EAP-EXT Vendor Id: Unknown (0x28af)
EAP-EXT Vendor Type: Unknown (0x03)
Data (2 bytes)
**Data: 0100**
[Length: 2]