They must choose one of the options below: You canceled the certificate warning prompt, and the connection was terminated. Phase 1 succeeds, but Phase 2 negotiation fails. 2020-11-13 13:56:39 12[ENC] <5> could not decrypt payloads, 2020-11-13 13:56:39 12[IKE] <5> message parsing failed, 2020-11-13 13:56:39 12[ENC] <5> generating INFORMATIONAL_V1 request 2070455846 [ HASH N(PLD_MAL) ], 2020-11-13 13:56:39 12[NET] <5> sending packet: from 10.0.0.4[500] to 72.138.xxx.xxx[500] (124 bytes), 2020-11-13 13:56:39 12[IKE] <5> ID_PROT request with message ID 0 processing failed, 2020-11-13 13:56:39 04[NET] sending packet: from 10.0.0.4[500] to 72.138.xxx.xxx[500], 2020-11-13 13:56:39 12[DMN] <5> [GARNER-LOGGING] (child_alert) ALERT: parsing IKE message from 72.138.xxx.xxx[4500] failed, 2020-11-03 04:17:03 03[NET] received packet: from 40.75.xxx.xxx[4500] to 192.168.1.16[4500] (96 bytes), 2020-11-03 04:17:03 03[ENC] parsed IKE_AUTH response 1 [ N(AUTH_FAILED) ], 2020-11-03 04:17:03 03[IKE] received AUTHENTICATION_FAILED notify error, 2020-11-03 04:17:03 03[DMN] [GARNER-LOGGING] (child_alert) ALERT: creating local authentication data failed, 2020-11-03 04:17:03 03[IKE] IKE_SA AUTHENTICATION_FAILED set_condition COND_START_OVER, 2020-11-03 04:17:03 03[IKE] IKE_SA has_condition COND_START_OVER retry initiate in 60 sec, 2020-11-03 04:17:03 03[CHD] CHILD_SA To_Azure_Sophos-1{191} state change: CREATED => DESTROYING, 2020-11-03 04:17:03 03[IKE] IKE_SA To_Azure_Sophos-1[123] state change: CONNECTING => DESTROYING, 2020-11-03 13:18:07 21[NET] <136> received packet: from 72.138.xxx.xxx[4500] to 10.0.0.4[4500] (464 bytes), 2020-11-03 13:18:07 21[ENC] <136> parsed IKE_AUTH request 1 [ IDi IDr AUTH SA TSi TSr N(MULT_AUTH) N(EAP_ONLY) N(MSG_ID_SYN_SUP) ], 2020-11-03 13:18:07 21[CFG] <136> looking for peer configs matching 10.0.0.4[10.0.0.4]72.138.xxx.xxx[72.138.xxx.xxx], 2020-11-03 13:18:07 21[CFG] <136> candidate "Azure_to_Sophos-1", match: 20/20/1052 (me/other/ike), 2020-11-03 13:18:07 21[CFG] selected peer config 'Azure_to_Sophos-1', 2020-11-03 13:18:07 21[IKE] tried 2 shared keys for '10.0.0.4' - '72.138.xxx.xxx', but MAC mismatched, 2020-11-03 13:18:07 21[DMN] [GARNER-LOGGING] (child_alert) ALERT: peer authentication failed, 2020-11-03 13:18:07 21[ENC] generating IKE_AUTH response 1 [ N(AUTH_FAILED) ], 2020-11-03 13:18:07 21[NET] sending packet: from 10.0.0.4[4500] to 72.138.xxx.xxx[4500] (96 bytes), 2020-11-03 13:18:07 21[IKE] IKE_SA Azure_to_Sophos-1[136] state change: CONNECTING => DESTROYING. This error applies to IPsec VPN connections only. The network adapter (ethernet or Wi-Fi) has no IP address. After much stuffing around and spotting a clue in the MR4 release notes, we figured out we had to have the Use as default gateway turned on in the GUI and then all the clients could connect. https://docs.sophos.com/nsg/sophos-firewall/18.5/Help/en-us/webhelp/onlinehelp/index.html?contextId=t_202108101524110523. Retry to see if it was due to user error during input. XG firewall supports only one profile as of today, if you go down the road with the XG config with split tunneling. Troubleshoot event errors - Sophos Connect I also deactivated and reactivated the tunnel to see if that would generate logs and create the file. Make sure the VPN configuration on both firewalls has the same settings for the following: Phase 1: Encryption, authentication, and DH group. 1.2 VPN Network topology If the firewall administrator changes the SSL VPN policy on Sophos Firewall while the tunnel is in a connected state, if it's an SSL VPN over TCP tunnel, the Sophos Connect client detects and downloads the new policy immediately. In the following topics, you can see error messages, possible causes for the errors, and information on what to do next. Contact your firewall administrator and report the problem to troubleshoot further. This issue may occur if the IKE version mismatch with the configured policy of the firewalls, Problem #3 -ALERT: peer authentication failed, Check the configured remote and local connection ID. If the provisioning file is configured correctly, contact your firewall administrator to troubleshoot further. PDF Configuration Guide SOPHOS XG Firewall - TheGreenBow If DNS resolution is failing, follow these instructions. SURF detected one or more of the following log lines below in the awarrenhttp log file of the SFOS appliance. If it's an SSL VPN over UDP tunnel, then you have to wait for the inactivity timer to delete the tunnel. 2020-11-13 13:56:39 12[ENC] <5> invalid ID_V1 payload length, decryption failed? The firewall administrator changed the policy on the firewall. Traffic stops flowing after some time. Help us improve this page by. Solved: vpn phase 2 error - IPSEC(ipsec_process_proposal): invalid Check if a DNS server is assigned to the network interface. Push the Default CA certificate from Sophos Firewall to the trusted store on the remote computers. If you need further assistance, contact Sophos Support. After the Phase 2 Security Association (SA) is established, a route can't be added to the remote network. This error is due to an invalid hostname. Push the default CA certificate from Sophos Firewall to the trusted store on the remote computers. To prevent the prompt from showing when the SSL VPN policy is downloading, contact your firewall administrator. Number of Views 110. . Issue a new certificate for Sophos Firewall signed by a public CA. Sophos Firewall 18.0; Cause The Allow All web filter policy on Sophos Firewall receives an invalid response from the upstream server it is accessing. If the preshared key matches, verify with the ISP or on the upstream devices if they've corrupted the packet. Pre MR5, everything was working just fine. If it's an SSL VPN over UDP tunnel, you need to wait for the inactivity timer to delete the tunnel. They must choose one of the options below: The SSL VPN policy is misconfigured on Sophos Firewall. Sophos XG Firewall: IPsec failed to setup the connection due to invalid ID Sophos Home your license has expired - Sophos Home Help Set the initiator's phase 1 and phase 2 key life values lower than the responder's. __________________________________________________________________________________________________________________. Error on decryption of the exchange\ Information field of the IKE request is malformed or not readable. Are you in /log partition? In this case, contact your firewall administrator. This error applies to SSL VPN connections only. Did this config work with MR4 and stop working with MR5? Due to negotiation timeout. IPsec connection is established between a Sophos Firewall device and a third-party firewall. The Sophos Connect client tried to establish an SSL VPN connection with an existing policy it has saved for this connection. Help us improve this page by, Comparing policy-based and route-based VPNs, Remote peer reports no match on the acceptable proposals, Tunnel established but traffic stops later. The purpose of this post is to help understand troubleshooting steps and explain how to fix the most common IPsec issues that can be encountered while using the Sophos Firewall IPsec VPN (site to site) feature. Always use the following permalink when referencing this page. See the following image: Enter the following command: ip xfrm policy. I can configure the default profile on the XG to tunnel everything (use as default gateway) and then my individual split profiles still work as they should. To put the strongswan service in debugging, type the following command: SFVUNL_AI01_SFOS 19.0.1 MR-1-Build365# service strongswan:debug -ds nosync, Run the following command to check the status of the service, SFVUNL_AI01_SFOS 19.0.1 MR-1-Build365# service -S | grep strongswan. As IPsec only, Sophos Connect IPSEC tunnel fails with MR5 unless Use as default gateway is set in Advanced settings. For example, the remote firewall expects 192.168.0.0/24, but the local firewall tries to negotiate using 192.168.1.0/24. Sophos Firewall: Troubleshooting site to site IPsec VPN issues 2020-11-13 04:55:06 17[ENC] invalid HASH_V1 payload length, decryption failed? The message no matching peer config found indicated that the connection ID wasnt configured to match on both sites. The firewall administrator manually deleted all of the IPsec connections for this user on the firewall. I had not configured the Advanced settings as it didn't exist prior to MR4. The firewall administrator changed the SSL VPN settings on Sophos Firewall after an SSL VPN connection was established and saved by Sophos Connect. IPsec authentication fails during phase 1 setup. We set it up as our standard Split Tunnel config and saved. 1997 - 2023 Sophos Ltd. All rights reserved. 2020-09-20 00:25:13 05[NET] received packet: from 72.138.xx.xx[4500] to 10.0.0.4[4500] (1168 bytes), 2020-09-20 00:25:13 05[ENC] parsed CREATE_CHILD_SA request 2 [ SA No KE TSi TSr ], 2020-09-20 00:25:13 05[CFG] looking for a child config for 10.0.1.0/24 === 172.16.19.0/24, 2020-09-20 00:25:13 05[IKE] traffic selectors 10.0.1.0/24 === 172.16.19.0/24 inacceptable. During the phase 2 negotiation, the local and remote subnets specified on the firewalls didn't match. 1 Introduction 1.1 Goal of this document This configuration guide describes how to configure TheGreenBow IPsec VPN Client software with a SOPHOS XG Firewall VPN router to establish VPN connections for remote access to corporate network. The connection imported from a provisioning file has a duplicate display name. Cause: Mismatched phase 1 proposals between the two peers. The client isn't able to resolve the gateway hostname. As I had to configure the Advanced settings area in MR5 (let's call it the default profile) to just save the screen, then things stopped working. Number of Views 140. Pricing for Sophos Home Premium is $59.99 (MSRP) for up to 10 PC and Mac devices; pricing may vary based on seasonal promotions All existing Sophos Home Free accounts (that switched to Free before November 11th 2021), worldwide will retain their Sophos Home Free license with all of the existing features, including protection for up to three PC . Override hostname is configured, but it does not resolve to a valid or correct public IP address. Check if the website is accessible using the None web filter policy. Also, check the IPSec crypto to ensure that the proposals match on both sides. I don't see any specific reference in the documentation saying only a single profile is supported. Please copy it manually. Example: You've configured the local firewall's IPsec connection with Local ID set to IP address, but the remote firewall is configured to expect a DNS name. 02-21-2020 Please contact Sophos Professional Services if you require assistance with your specific environment. If all the settings match, the remote firewall administrator must check the configuration at their end since the remote firewall has refused the connection. Your browser doesnt support copying the link to the clipboard. SURF Detections . This issue may occur if the networks being negotiated on either end of the tunnels dont match on both ends. The policy gateway is unreachable because it's turned off. This sends an IKE delete request to all the active SAs on the firewall. A site-to-site IPSec VPN between a Palo Alto Networks firewall and a firewall from a different vendor is configured. Delete the existing connection from Sophos Connect. The pre-shared key on the firewall doesn't match the one used for this connection. Sophos Firewall: Website inaccessible due to 502 status code - invalid Find answers to your questions by entering keywords or phrases in the Search bar above. Disclaimer: This information is provided as-is for the benefit of the Community. ), IKE phase-2 negotiation is failed as initiator, quick mode. Thegrepcommandapplies a search filter for the keyword within the logs. Open the command prompt as an administrator and enter the following commands: If the connection is configured with a provisioning file, Sophos Connect automatically tries to reconnect. Ensure that traffic from LAN hosts passes through the Sophos Firewall. A connection with the same name has already been imported. Sophos Firewall requires membership for participation - click to join. Check the logs on the remote firewall to make sure the mismatch of ID types has resulted in the error. IPSec VPN Error: IKE Phase-2 Negotiation is Failed as Initiator, Quick Mode The most common phase-2 failure is due to Proxy ID mismatch. The firewall or the router is blocking UDP ports 500 and 4500. Verify the network objects on either end match exactly down to the correct subnets and even individual addresses. If the connection was added by importing an Open VPN (. As IPsec only can have one profile, it will only have the option to push one profile to the client and allow only one set of networks to connect. If the connection was added using a provisioning file, verify the hostname provided. Open the command prompt as an administrator and type the following command: net start scvpn. Verify if firewall rules are created to allow VPN traffic. Resolution. Allowed users and groups and you can't do it in the GUI (from the VPN area) unless the Advanced settings area is configured. Verify the IPsec connection status with the following command: , Verify the IPsec route by running the following command: . I enabled strongswan and it shows that it's running, but when I run the tail -f command, its saying No such file or directory. Also you can refer the sample config here. crypto ikev2 proposal AES256-192-128-PROPOSAL, encryption aes-cbc-256 aes-cbc-192 aes-cbc-128, match identity remote address 10.0.0.2 255.255.255.255, crypto ipsec transform-set ESP-AES256-SHA esp-aes 256 esp-sha-hmac, ip route 192.168.1.0 255.255.255.0 10.0.0.2, i found the issue, i had misconfigured the tunnel and was using the wrong interface as the source, IPSEC(ipsec_process_proposal): invalid local address. Check the display_name attribute in the provisioning file and rename any duplicate names. Possible reasons for the failure are as follows: Thank you for your feedback. Well put strongswan service in debugging while we troubleshoot IPsec VPN issues. The user must download and import a new ovpn file from Sophos Firewall user portal to re-establish the SSL VPN tunnel. The possible causes are as follows: The remote gateway responded to IKE negotiations from Sophos Connect with this error notification. abc Sophos XG Firewall: Mails failed to deliver due to retry time not reached for any . Phase 2 fail, IPSec policy invalidated proposal with error 32 Accept the security warning to connect and download the, Issue a new certificate for Sophos Firewall signed by a public CA. The troubleshooting steps below are for Windows only. This may be because the firewall administrator changed the local ID on the firewall, and the new configuration file wasn't imported to Sophos Connect. If you can't authenticate, follow these instructions. Thank you for your feedback. This may be because the strongSwan service crashed while the tunnel was active. Contact your firewall administrator if you need further help. We have two different Split Tunnel configurations deployed to clients. The firewall administrator may have changed it on the firewall, and the new configuration file hasn't been uploaded to Sophos Connect. Thank you for the feedback. Sophos Connect then downloads the new policy to re-establish the tunnel. If you used a provisioning file to import the connection, update the policy connection settings menu (on the Sophos Connect client). Rarely, the ISP or an upstream appliance, such as a router or another firewall, may corrupt the packet. The purpose of this post is to help understand troubleshooting steps and explain how to fix the most common IPsec issues that can be encountered while using the Sophos Firewall IPsec VPN(site to site) feature. Phase 1 is up \ Initiating establishment of Phase 2 SA \ Remote peer reports no match on the acceptable proposals The remote firewall shows the following error message: NO_PROPOSAL_CHOSEN Cause: Mismatched phase 2 proposal. It will remain unchanged in future help versions. Failed SA: 216.204.241.93[500]-216.203.80.108[500] message id:0x43D098BB. The local ID type or value configured in the Sophos Connect policy on the firewall is different from this connection's value. Here is the same example for site to site, http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/867-cisco-router-site-to-site-ipsec-vpn.html. message ID = 1546246116 *Jan 11 2016 03:47:03.535 UTC: ISAKMP: (1003): processing SA payload. 2020-09-20 00:29:42 22[NET] <10> received packet: from 72.138.xx.xx[4500] to 10.0.0.4[4500] (464 bytes), 2020-09-20 00:29:42 22[ENC] <10> parsed IKE_AUTH request 1 [ IDi IDr AUTH SA TSi TSr N(MULT_AUTH) N(EAP_ONLY) N(MSG_ID_SYN_SUP) ], 2020-09-20 00:29:42 22[CFG] <10> looking for peer configs matching 10.0.0.4[10.0.0.1]72.138.xx.xx[72.138.xx.xx], 2020-09-20 00:29:42 22[CFG] <10> no matching peer config found, 2020-09-20 00:29:42 22[DMN] <10> [GARNER-LOGGING] (child_alert) ALERT: peer authentication failed, 2020-09-20 00:29:42 22[ENC] <10> generating IKE_AUTH response 1 [ N(AUTH_FAILED) ], 2020-09-20 00:29:42 22[NET] <10> sending packet: from 10.0.0.4[4500] to 72.138.xx.xx[4500] (96 bytes), 2020-09-20 00:29:42 22[IKE] <10> IKE_SA (unnamed)[10] state change: CONNECTING => DESTROYING, 2020-09-20 00:29:42 04[NET] sending packet: from 10.0.0.4[4500] to xx.xx[4500], SFVUNL_AI01_SFOS 19.0.1 MR-1-Build365# ipsec statusall. If they match, check the remote firewall logs for the cause. & Parsed IKE_AUTH response1[ N(AUTH_FAILED) ]. Cause: The remote firewall couldn't authenticate the local request because the ID types don't match. 2020-09-20 00:25:13 05[IKE] failed to establish CHILD_SA, keeping IKE_SA, Logs on remote(respond only) Sophos firewall, 2020-09-24 18:51:19 13[NET] <100> received packet: from 72.138.xx.xx1[500] to 10.0.0.4[500] (872 bytes), 2020-09-24 18:51:19 13[ENC] <100> parsed ID_PROT request 0 [ SA V V V V V V ], 2020-09-24 18:51:19 13[CFG] <100> looking for an ike config for 10.0.0.472.138.xx.xx, 2020-09-24 18:51:19 13[IKE] <100> no IKE config found for 10.0.0.472.138.xx.xx, sending NO_PROPOSAL_CHOSEN, 2020-09-24 18:51:19 13[ENC] <100> generating INFORMATIONAL_V1 request 1316998708 [ N(NO_PROP) ], 2020-09-24 18:51:19 13[NET] <100> sending packet: from 10.0.0.4[500] to 72.138.107.211[500] (40 bytes), 2020-09-24 18:51:19 13[IKE] <100> IKE_SA (unnamed)[100] state change: CREATED => DESTROYING, 2020-09-24 09:50:54 06[NET] received packet: from 40.84.xx.xx [500] to 192.168.1.16[500] (40 bytes), 2020-09-24 09:50:54 06[ENC] parsed INFORMATIONAL_V1 request 1316998708 [ N(NO_PROP) ], 2020-09-24 09:50:54 06[IKE] informational: received NO_PROPOSAL_CHOSEN error notify, 2020-09-24 09:50:54 06[IKE] IKE_SA NO_PROPOSAL_CHOSEN set_condition COND_START_OVER, 2020-09-24 09:50:54 06[IKE] flush_queue(IKE_MOBIKE), 2020-09-24 09:50:54 06[IKE] ### destroy: 0x7f9b88001f80, 2020-09-24 09:50:54 06[IKE] flush_queue(IKE_NATD), 2020-09-24 09:50:54 06[IKE] flush_queue(IKE_INIT), 2020-09-24 09:50:54 06[IKE] IKE_SA has_condition COND_START_OVER retry initiate in 60 sec, 2020-09-24 09:50:54 06[IKE] IKE_SA To_Azure_Sophos-1[108] state change: CONNECTING => DESTROYING.
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