Created a Site to Site iPSEC Policy Based VPN between Azure and Sophos UTM, I just followed this community.sophos.com/.../126995 but it somehow doesn't work. As i checked in the backlogs it shows as follows
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uto[5871]: "S_REF_IpsSitConnecteas_0" #470: max number of retransmissions (20) reached STATE_MAIN_I1. No response (or no acceptable response) to our first IKE message 2019:02:24-03:06:58 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #470: starting keying attempt 10 of an unlimited number 2019:02:24-03:06:58 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #485: initiating Main Mode to replace #470 2019:02:24-03:06:58 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN 2019:02:24-03:06:59 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:06:59 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: sending encrypted notification INVALID_MESSAGE_ID to :500 2019:02:24-03:07:02 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:07:02 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: sending encrypted notification INVALID_MESSAGE_ID to 1:500 2019:02:24-03:07:09 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN 2019:02:24-03:07:09 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:07:09 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: sending encrypted notification INVALID_MESSAGE_ID to :500 2019:02:24-03:07:24 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:07:24 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: sending encrypted notification INVALID_MESSAGE_ID to :500 2019:02:24-03:07:29 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN 2019:02:24-03:07:39 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:07:39 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:07:54 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #484: received Delete SA payload: deleting ISAKMP State #484 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [01528bbbc00696121849ab9a1c5b2a5100000001] 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: received Vendor ID payload [MS NT5 ISAKMPOAKLEY 00000009] 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: received Vendor ID payload [RFC 3947] 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02_n] 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [FRAGMENTATION] 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [MS-Negotiation Discovery Capable] 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [Vid-Initial-Contact] 2019:02:24-03:07:54 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [IKE CGA version 1] 2019:02:24-03:07:54 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: responding to Main Mode 2019:02:24-03:07:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: NAT-Traversal: Result using RFC 3947: no NAT detected 2019:02:24-03:07:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: Peer ID is ID_IPV4_ADDR: '13.82.199.211' 2019:02:24-03:07:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sent MR3, ISAKMP SA established 2019:02:24-03:07:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: cannot respond to IPsec SA request because no connection is known for 192.168.0.0/24===112.133.219.53[112.133.219.53]...13.82.199.211[13.82.199.211]===10.3.0.0/16 2019:02:24-03:07:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sending encrypted notification INVALID_ID_INFORMATION to 13.82.199.211:500 2019:02:24-03:07:56 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:07:56 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:07:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:07:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:08:00 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:08:00 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:08:07 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:08:07 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:08:08 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN 2019:02:24-03:08:22 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:08:22 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:08:37 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:08:37 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:08:49 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN 2019:02:24-03:08:52 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #486: received Delete SA payload: deleting ISAKMP State #486 2019:02:24-03:08:57 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [01528bbbc00696121849ab9a1c5b2a5100000001] 2019:02:24-03:08:57 vpn pluto[5871]: packet from 1:500: received Vendor ID payload [MS NT5 ISAKMPOAKLEY 00000009] 2019:02:24-03:08:57 vpn pluto[5871]: packet from :500: received Vendor ID payload [RFC 3947] 2019:02:24-03:08:57 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02_n] 2019:02:24-03:08:57 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [FRAGMENTATION] 2019:02:24-03:08:57 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [MS-Negotiation Discovery Capable] 2019:02:24-03:08:57 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [Vid-Initial-Contact] 2019:02:24-03:08:57 vpn pluto[5871]: packet from :500: ignoring Vendor ID payload [IKE CGA version 1] 2019:02:24-03:08:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: responding to Main Mode 2019:02:24-03:08:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: NAT-Traversal: Result using RFC 3947: no NAT detected 2019:02:24-03:08:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: Peer ID is ID_IPV4_ADDR: '' 2019:02:24-03:08:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sent MR3, ISAKMP SA established 2019:02:24-03:08:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: cannot respond to IPsec SA request because no connection is known for 192.168.0.0/24===112.133.219.53[112.133.219.53]...13.82.199.211[13.82.199.211]===10.3.0.0/16 2019:02:24-03:08:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sending encrypted notification INVALID_ID_INFORMATION to 13.82.199.211:500 2019:02:24-03:08:58 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:08:58 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:08:59 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:08:59 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:09:02 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:09:02 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:09:09 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:09:09 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:09:24 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:09:24 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:09:29 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN 2019:02:24-03:09:40 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:09:40 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring Vendor ID payload [01528bbbc00696121849ab9a1c5b2a5100000001] 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: received Vendor ID payload [MS NT5 ISAKMPOAKLEY 00000009] 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: received Vendor ID payload [RFC 3947] 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02_n] 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring Vendor ID payload [FRAGMENTATION] 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring Vendor ID payload [MS-Negotiation Discovery Capable] 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring Vendor ID payload [Vid-Initial-Contact] 2019:02:24-03:09:55 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring Vendor ID payload [IKE CGA version 1] 2019:02:24-03:09:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: responding to Main Mode 2019:02:24-03:09:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #487: received Delete SA payload: deleting ISAKMP State #487 2019:02:24-03:09:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: NAT-Traversal: Result using RFC 3947: no NAT detected 2019:02:24-03:09:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: Peer ID is ID_IPV4_ADDR: '13.82.199.211' 2019:02:24-03:09:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sent MR3, ISAKMP SA established 2019:02:24-03:09:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: cannot respond to IPsec SA request because no connection is known for 192.168.0.0/24===112.133.219.53[112.133.219.53]...13.82.199.211[13.82.199.211]===10.3.0.0/16 2019:02:24-03:09:55 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sending encrypted notification INVALID_ID_INFORMATION to 13.82.199.211:500 2019:02:24-03:09:56 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:09:56 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:09:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:09:57 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:10:00 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:10:00 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:10:07 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:10:07 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:10:09 vpn pluto[5871]: packet from 13.82.199.211:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN 2019:02:24-03:10:22 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:10:22 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500 2019:02:24-03:10:37 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: Quick Mode I1 message is unacceptable because it uses a previously used Message ID 0x01000000 (perhaps this is a duplicated packet) 2019:02:24-03:10:37 vpn pluto[5871]: "S_REF_IpsSitConnecteas_0" #488: sending encrypted notification INVALID_MESSAGE_ID to 13.82.199.211:500
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