No Proposal Chosen Sophos, Check VPN IKE diagnostic log messages on the remote gateway endpoint for more information. 10, R81. Here is an excerpt of the log file. 7 Falscher RSA The log message " Received notify: No_Proposal_Chosen " indicates there is a mismatch of proposals during phase 1 or phase 2 negotiation between a site-to System Logs showing "no proposal chosen. Sol Hi, ipsec-l2tp remote vpn is unable to pass ipsec phase 1 connection, client i nativ Windows 10 L2tp is enabled, Profile is default L2TP Gateway type: respond only My problem with the NO_PROPOSAL_CHOSEN error has also been solved, thank you again for your help. scx file. assuming its a This message in VPN Tracker means that the VPN gateway isn't willing to accept any of the proposals that VPN Tracker has offered. scx file, then import the modified . ” However, when I check the Vyatta’s logs, I get the following: "May 23 1. B. laptops with two diff. Also, pics of the Netscreen's 'Remote Tunnel Gateway Configuration' and 'Phase I Proposal Configuration'. 2 MR-2-Build472). how to troubleshoot the message 'no proposal chosen' and 'no SA proposal chosen' when they appear in IKE debug logs. It turned out that after changing the PSK key also changed the encryption method used by the In the working legacy con I also get packets requesting certain proposals in case I don't propose them, however I don't get them now. 试图排除IPSec/IKEv1VPN与Strongswan的连接，该连接未能用NO_PROPOSAL_CHOSEN完成第二阶段。我知道这个错误的解决方案几乎总 With traceoptions enabled, i can see the message "no proposal chosen". when my pc requests, R2'crypto isa log : R2#debug crypto isakmp Hello, I have just bought an XGS118 and I'm trying to setup a site-2-site IPSEC VPN connection, the XGS is the main firewall and is located in the HO, the (FortiGate will not accept an IPsec negotiation attempt if there's no policy to let the tunnelled traffic pass through). All are functioning as Hallo zusammen, ich wollte heute einen IPSec-Tunnel einrichten, jedoch kommt die Phase 1 mit der Meldung "received NO_PROPOSAL_CHOSEN error notify" Hi, after upgrading from version 9. Updated about 12 years ago. In the end of the tunnel there si a Sonic Wall not I am rather new to Sophos and am trying to get a site to site ipsec VPN working. Our setup is: Hi all, Bit of a strange one. I found it among additional error lines in syslog. This is the first client I'm setting up and did not have it working I have an IPSEC connection that seems to be identical on both the sophos and the Cisco ASA end. On our end, we replaced an old Pix 515 with a new ASA 5520 and since then, the tunnel will not come up I want to establish an ipsec tunnel between a Centos machine and my pfsense firewall. In such situation it is possible that when the Client is initiating the IKE connection it is not matched against the Sophos Connect Client policy and instead matches If you have issues connecting to your remote network, click the events tab, find the timestamp from when you attempted a One peer tries to start the connection to the other, giving the proposal for the VPN. The tunnel settings for phase 1 Technical Tip: VPN IKE Tunnel fail to come up 'no proposal chosen' local-gw with secondary IP addresses 4249 0 Suggest New Article Hi, the message no proposal chosen often are related to some device in the middle of you and your customer that filters udp packet on ports 500 and 4500. What is my configuration error? No_PROPOSAL_CHOSEN notify error im not an programmer. sophos. 2:500: ignoring I am using IKEv2 (since I am not able to get IKE connected, I have tried different proposal, but all giving me no_proposal_chosen). 1. Leider bekomme ich hier immer den Fehler No Proposal Chosen. 3 Falsche Remote-Gateway-Adresse 2. When I attempt to start the connection, the phase1 comes up but the phase2 fails. Set up FortiGate as the initiator in IKE Make these two changes to the . 0-5-amd64 kernel. As the proposals have not IPsec to Cisco ASA - received NO_PROPOSAL_CHOSEN notify, no CHILD_SA built Started by Moonshine, January 24, 2024, 01:38:17 AM Previous topic - Next topic Print Go Down Pages 1 I am trying to connect to Cisco ASA IKEv1 VPN with StrongSwan (5. You see in the middle section I'm having trouble setting up Sophos Connect Client with an XG v18 firewall and am looking for your assistance. This error is showing for IKEv1 and v2 Sophos Managed detection and response (MDR) delivers cybersecurity as a service (CSaaS). NO_PROPOSAL_CHOSEN is indicating that there is a difference in the setting between the two sides. 1) Look for this line: Transforms = AES256-SHA2_256-GRP2 and replace it Transforms = AES256-SHA2_256- ECP256. A more-complete list of the Astaro's IPsec log would be helpful. next payload type: ISAKMP_NEXT_NONE length: 12 DOI: ISAKMP_DOI_IPSEC protocol ID: 1 SPI size: 0 Notify Message Type: NO_PROPOSAL_CHOSEN packet from 185. The HELLO: I am facing a problem when configuring the ipsec vpn on my 7200 router. The I believe this log shows your side receiving NO_PROPOSAL_CHOSEN from the remote end. C. I have tried on two diff. x to version 9. This was a site to client topology like shown bellow. What I experienced was that I was able to connect, but another What If "got NOTIFY of type NO_PROPOSAL_CHOSEN" or "drop message from A. D due to notification type NO_PROPOSAL_CHOSEN" Is Displayed During IPSec Debugging? Sophos Firewall デバイスでサイト間 IPsec VPN 接続を確立できない原因として、よくある設定ミスについて説明します。 Somehow it doesnt work anymore, Our Logfile says: NO_PROPOSAL_CHOSEN. 3. tgb file in Sophos Connect Admin and make the change you need, save it and import the modified . 0. 5 onwards, FortiGate requires the SPI size of the IKE SA proposal to be zero. tgb file. IKE Settings: AES 256 / SHA2 256 / Cannot connect to VPN, gives error "received NO_PROPOSAL_CHOSEN notify, no CHILD_SA built", when I'm trying to connect with the command, "ipsec up ikev2- Created on ‎03-16-2006 06:32 AM Thanks, phase 1 is ok now, I had to add proposal 2 in each phase. 2 VPN Network topology In our VPN network example (diagram hereafter), we will connect TheGreenBow IPsec VPN Client software to the LAN behind the SOPHOS XG Firewall router. 2016:11:29-09:58:59 pluto [25748]: packet from ext_ip_ipfire:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN Ich stelle mir noch die Issue #442 no IKE config found for IPaIPb, sending NO_PROPOSAL_CHOSEN Added by zhenxing huang over 12 years ago. Remember: Upvote with the 👍 button Nov 26 16:12:00 dcvpnl002prpny2 charon: 05[IKE] received NO_PROPOSAL_CHOSEN notify, no CHILD_SA built Nov 26 16:12:00 dcvpnl002prpny2 charon: 05[IKE] failed to establish CHILD_SA, ERROR 0x02030014 Received 'No Proposal Chosen' message. Try check if there are some filters on your " received NO_PROPOSAL_CHOSEN notify, no CHILD_SA built" <- Remote peer is refusing our Phase 1 proposals The problem appears to be a mismatch between Phase 1 acceptable proposals between “No Proposal Chosen’ message. The other peer will answer the negotiation with his proposal, which The log message " Received notify: No_Proposal_Chosen " indicates there is a mismatch of proposals during phase 1 or phase 2 From v7. 20 Last Modified 2025-10-29 Using IKEv2 shows an error message "No Proposal Chosen" in System Manager; however using IKEv1 works fine. 9. 2. Notable reasons: The reason of testing is placing the IPSEC responder interface in a different routing-instance than the interesting Troubleshooting the "no proposal chosen" error Product IPSec VPN Version R81 (EOS), R81. You'll need to debug this on the remote end, or become the responder instead of the initiator, since the When I last had NO_PROPOSAL_CHOSEN I had to make sure the MTU settings as shown above match what my system was expecting. 1. Our highly skilled experts monitor, investigate, and respond to No response from gateway: <gateway FQDN or IP specified in connection> Received NO_PROPOSAL_CHOSEN notification from gateway SA disabled or "packet from YYY. 0 GA-Build222) offsite to replace an onsite XG 135 ( SFOS 19. ScopeFortiGate. The error ‘NO_PROPOSAL_CHOSEN’ means that there is a mismatch of the IPsec policies. As If you need to use the . It seems as thou the tunnel comes up, but I cannot seem to get data to traverse Hallo, ich habe ein Problem, ich möchte beim Remote Access IPsec IKEv2 mit dem Sophos Connect Client nutzen. Hello, I´ve been struggling with IPSec lately. The backup of the XG 135 was used to check your phase1 settings (proposed algorithms should be equal to the ones on the client) (you propably already checked this). xxxyyy. 5. 4. Relevant files are Die IPSec-Phase-1-Aushandlung schlägt fehl, da "NO_PROPOSAL_CHOSEN" in den Systemprotokollen angezeigt wird - DH Gruppenkonflikt in Phase 1 ike Negotiate ISAKMP SA Error: ike 3:20b27f143b809b23/0000000000000000:0: no SA proposal chosen It is a struggle to re-establish the connection, and I only I am testing a new XGS 136 (SFOS 20. yyy, sending NO_PROPOSAL_CHOSEN Please start your own thread, it's highly unlikely to be the same issue. Is there a different encryption algorithm between Ubiquiti and WatchGuard with IKEv2? Today we determined that even though the Parameters and Phase 1 Proposals match, the Fortigate will not choose a Proposal and fails. Hoping someone may be able to advise. 5 Falsche ID Responder 2. YYY:500: ignoring informational payload, type NO_PROPOSAL_CHOSEN" We tried almost every combination of the P1 and NO_PROPOSAL_CHOSEN strongswan ipsec tunnel Ask Question Asked 3 years, 4 months ago Modified 1 year, 7 months ago Connecting IPsec to third party is always the challenge, as a lot of vendors interpret the settings of their ipsec daemon differently. I have a total of 11 XG 135's that I have setup a Site-To-Site IPSEC VPN using the 'DefaultHeadOffice' and 'DefaultBranchOffice' profiles. x. I tried with both Strongswan and Libreswan but always get a NO_PROPOSAL_CHOSEN error, no matter which algorithms I choose in ipsec. The IPSEC tunnel problem : no SA proposal chosen hello, i have a problem with a site-to-site VPN i'm currently on fortigate VM-64 (Firmware Versionv5. For example: IPsec SFOS to SFOS can be setup and working within Created a Site to Site iPSEC Policy Based VPN between Azure and Sophos UTM, I just followed this community. First thing that jumps out at me is no PFS group set in the IPSec configuration. 6 Falscher PSK 2. And then P2 - 173076 ‎ 08-14-2023 05:45 AM @swscco001 based on this error:- "ERROR: Received no proposal chosen notify" I would check the configured IKEv2 and IPSec algorithms match between you and your peer. conf or in GNOME network manager. On the Juniper site we get theres no IKE ID send from the Sophos device. According to the pfSense docs, that implies an encryption or hash mismatch. Now import the modified We got it going today once they fixed their routes but the error message I'm seeing continues and now the tunnel is down again. " System Logs showing "<IKEGateway> unauthenticated NO_PROPOSAL_CHOSEN received, you may need to check And it ens in: <322> no proposal found But with the same Win11 client I can connect to the Sophos SG with the same policy: Compression off, not using strict policy. vpn clients @home and @work, but it still doesn' t work. I am not able to use HQ as Phase 1 appears to complete but phase 2 fails with NO_PROPOSAL_CHOSEN (log below). YYY. (SA_NO PROPOSAL CHOSEN We've tried the same setup on IPSec-Phase-1-Aushandlung schlägt fehl, da "NO_PROPOSAL_CHOSEN" in den Systemprotokollen angezeigt wird - Authentifizierungskonflikt in Phase 1 La négociation IPSec Phase 1 échoue avec « NO_PROPOSAL_CHOSEN » dans les journaux système - Incompatibilité de chiffrement dans la phase 1 在Ubuntu18. This is kind of classical question and I'have found lot of discussions on t 15 [IKE] received NO_PROPOSAL_CHOSEN notify error #2535 Closed Unanswered peterczech123 asked this question in Q&A "Louis_1" #5: no acceptable Proposal in IPsec SA "Louis_1" #5: sending encrypted notification NO_PROPOSAL_CHOSEN to :500 "Louis_1" #3: Quick Mode I1 message is unacceptable because We had a working IPSec connection with another location. If this value is non-zero, the proposal will be ignored. Attached, is the result of the strongswan status: Active: active (running) since Tue 2020-12-08 17:56:54 CET; 2 IPsec configurations are often a point of frustration it can be very difficult and tedious to determine what exactly the issue is. Many users view our IPsec configuration log (Apps > IPsec VPN & Thanks in advance for any help you can provide as i am new to IPsec tunnels and inherited this undocumented solution! We have a Site-To-Site vpn between a Cisco ASA (HQ Site) and Firepower 在调试的时候出现关于NO_PROPOSAL_CHOSEN的信息，应该如何处理 no IKE config found for xxx. I'm configuring a new Ikev2 site-to-site VPN on a Cisco 2921 to a customer/3rd party Cisco ASA, we're running both Ikev1 + Ikev2 vpns IPsec Negotiation Failed: Understanding ‘No Proposal Chosen’ Hey everyone! So, you’re trying to set up an IPsec VPN, and BAM! You hit a wall with the Hello Community, Dears, I have an issue in setup FortiGate MikroTik IPSec tunnel from MikroTik side -> failed to pre-process ph2 packet from FortiGate side -> NO-PROPOSAL-CHOSEN/no matching Any Mikrotik IPsec VPN Tunnel problem, NO-PROPOSAL-CHOSEN/no matching, failed to pre-process ph2 packet Hello Community, Dears, I have an issue in setup FortiGate MikroTik IPSec tunnel from 2021-12-29 12:59:16Z 06 [IKE] <FritzBox_IPsecS2S_-1|5317> IKE_SA NO_PROPOSAL_CHOSEN set_condition COND_START_OVER 2021-12-29 . x my UTM 320, the VPN (IPSEC) connection does not work. 10中，我尝试使用PSK和SHA1-AES 256位DH组2和ESP SHA1组1在第二阶段使用PSK与WatchGuard服务器建立一个ESP连接。我尝试过使用Strongswan和Libreswan，但是总是会得到一 Question: How to troubleshoot the message "no proposal chosen" when it appeares in event logs? Answer: Site-to-Site VPN (Both sites are Nebula firewalls) On Er findet nicht "die konfig nicht", sondern NO PROPOSAL CHOSEN heißt, dass er sich mit der Gegenstelle auf KEINE gültige ausgewählte Einstellung der Phase einigen kann. 1-4+deb9u1) on Debian Linux with 4. 0,build3608 (GA Patch 7)) the other end is a I'm trying to connect an Sophos Sophos ASG220 appliance v8. I´m trying to establish a Site-to-Site IPSec Tunnel with a Stonesoft system and a RB750G. All configs double checked on both sides. 4 Falsche ID Initiator 2. 11 with a SonicWALL TZ 215 For some reason that escapes me the tunnel, named "Dev-VPN" fails to establish To troubleshoot site-to-site IPsec VPN connections and failover groups, you can check the logs, IPsec profiles, and connection properties. xxx. 2020-09-24 09:50:54 06 [IKE] <To_Azure_Sophos-1|108> IKE_SA NO_PROPOSAL_CHOSEN set_condition COND_START_OVER 2020-09-24 09:50:54 06 [IKE] <To_Azure_Sophos-1|108> Solved: Hi, I keep having issues with my IPSec sts VPN. Check with diag vpn ike config list, the last like should say "policy: yes/no". yyy. com//126995 but it somehow doesn't work. Always have a No proposal chosen message on the Phase 2 proposal. 2 Falsches Proposal 2. This article explains about the reason why IPSec Phase1 negotiation fails with message "unauthenticated NO_PROPOSAL_CHOSEN received, you may need Sophos Firewall always postspends the default AES128/SHA2 256 to the configured Phase 1 proposal; this is based on the default strongswan behavior. Has anyone come across this? IKE Responder: IPSec Proposal does not match (Phase 2) The initiating SonicWall sent an IPSec proposal that does not match the responding SonicWall during Phase 2 negotiations. 5ahm6w, mxvw, kmb2c, e0d6, 7609i, x5cum, de2l, et85, mcp6nf, qtqn2,