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iPhone unable to connect SE server

Posted: Mon Jul 25, 2022 6:55 am
by kelvinyeung.hk
Hello,
I have a new setup SE VPN server using Ubuntu, both Win10 and Android machine are able to connect but only iPhone unable, I check the vpn log find the following:

IPsec IKE Session (IKE SA) 157 (Client: 410) (iPhone_Internet_IP12749 -> VPN-Server024500): This IKE SA is established between the server and the client.
IPsec Client 409 (iPhone_Internet_IP30489 -> VPN-Server02500): This IPsec Client is deleted.
IPsec Client 410 (iPhone_Internet_IP12749 -> VPN-Server024500): This IPsec Client is deleted.
IPsec IKE Session (IKE SA) 157 (Client: 410) (iPhone_Internet_IP12749 -> VPN-Server024500): This IKE SA is deleted.

it show "This IPSec Client is deleted" / "This IKE SA is deleted".

Compare with Android successful connect, it show:

IPsec Client 205 (Android_Internet_IP:5035 -> VPN-Server:500): A new IPsec client is created.
IPsec IKE Session (IKE SA) 182 (Client: 205) (Android_Internet_IP:5035 -> VPN-Server:500): A new IKE SA (Main Mode) is created. Initiator Cookie: 0x5875EADF41A737DF, Responder Cookie: 0x232A386818F00CE6, DH Group: MODP 1024 (Group 2), Hash Algorithm: SHA-2-384, Cipher Algorithm: AES-CBC, Cipher Key Size: 256 bits, Lifetime: 4294967295 Kbytes or 28800 seconds
IPsec Client 205 (Android_Internet_IP:15825 -> VPN-Server:4500): The port number information of this client is updated.
IPsec Client 205 (Android_Internet_IP:15825 -> VPN-Server:4500):
IPsec IKE Session (IKE SA) 182 (Client: 205) (Android_Internet_IP:15825 -> VPN-Server:4500): This IKE SA is established between the server and the client.
IPsec IKE Session (IKE SA) 182 (Client: 205) (Android_Internet_IP:15825 -> VPN-Server:4500): The client initiates a QuickMode negotiation.


Please advise is there are any mis-configuration made, many thanks.