Good evening,
Could someone help to setup properly VPN L2TP/IPSec on Android 10, I read a lot of information in Internet and did not find any relevant information. I configured Sophos VPN L2TP/IPsec and turn it on, take a Android select L2TP/Ipsec Preshared key and try to connect, unfortunately, the connection cannot be established due to the error.
Note: On IOS Apple Devices it works fine.
How can I setup VPN L2tp/IPsec on Android 10?. Thank you in advance.
My Settings:
Error:
2019:12:02-21:44:55 SophosR pluto[5541]: packet from 212.54.100.64:1525: received Vendor ID payload [RFC 3947]
2019:12:02-21:44:55 SophosR pluto[5541]: packet from 212.54.100.64:1525: ignoring Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02]
2019:12:02-21:44:55 SophosR pluto[5541]: packet from 212.54.100.64:1525: ignoring Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02_n]
2019:12:02-21:44:55 SophosR pluto[5541]: packet from 212.54.100.64:1525: ignoring Vendor ID payload [draft-ietf-ipsec-nat-t-ike-00]
2019:12:02-21:44:55 SophosR pluto[5541]: packet from 212.54.100.64:1525: ignoring Vendor ID payload [FRAGMENTATION 80000000]
2019:12:02-21:44:55 SophosR pluto[5541]: packet from 212.54.100.64:1525: received Vendor ID payload [Dead Peer Detection]
2019:12:02-21:44:55 SophosR pluto[5541]: "L_for vpn "[3] 212.54.100.64:1525 #7: responding to Main Mode from unknown peer 212.54.100.64:1525
2019:12:02-21:44:55 SophosR pluto[5541]: "L_for vpn "[3] 212.54.100.64:1525 #7: NAT-Traversal: Result using RFC 3947: peer is NATed
2019:12:02-21:44:55 SophosR pluto[5541]: | NAT-T: new mapping 212.54.100.64:1525/4500)
2019:12:02-21:44:55 SophosR pluto[5541]: "L_for vpn "[3] 212.54.100.64:4500 #7: Peer ID is ID_IPV4_ADDR: '10.85.56.115'
2019:12:02-21:44:55 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500 #7: deleting connection "L_for vpn "[3] instance with peer 212.54.100.64 {isakmp=#0/ipsec=#0}
2019:12:02-21:44:55 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500 #7: Dead Peer Detection (RFC 3706) enabled
2019:12:02-21:44:55 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500 #7: sent MR3, ISAKMP SA established
2019:12:02-21:44:55 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500 #7: ignoring informational payload, type IPSEC_INITIAL_CONTACT
2019:12:02-21:44:56 SophosR pluto[5541]: "L_for vpn "[2] 212.54.100.64:4500 #8: responding to Quick Mode
2019:12:02-21:44:56 SophosR pluto[5541]: "L_for vpn "[2] 212.54.100.64:4500 #8: IPsec SA established {ESP=>0x0f8b277d <0xb0717fcc NATOA=0.0.0.0 DPD}
2019:12:02-21:45:51 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500 #7: received Delete SA(0x0f8b277d) payload: deleting IPSEC State #8
2019:12:02-21:45:51 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500 #7: deleting connection "L_for vpn "[2] instance with peer 212.54.100.64 {isakmp=#0/ipsec=#0}
2019:12:02-21:45:51 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500 #7: received Delete SA payload: deleting ISAKMP State #7
2019:12:02-21:45:51 SophosR pluto[5541]: "L_for vpn "[4] 212.54.100.64:4500: deleting connection "L_for vpn "[4] instance with peer 212.54.100.64 {isakmp=#0/ipsec=#0}
2019:12:02-21:45:51 SophosR pluto[5541]: ERROR: asynchronous network error report on eth0 for message to 212.54.100.64 port 4500, complainant 212.54.100.64: Connection refused [errno 111, origin ICMP type 3 code 3 (not authenticated)]
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