{"action":"created","issue":{"url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/issues/688","repository_url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN","labels_url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/issues/688/labels{/name}","comments_url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/issues/688/comments","events_url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/issues/688/events","html_url":"https://github.com/SoftEtherVPN/SoftEtherVPN/issues/688","id":356676361,"node_id":"MDU6SXNzdWUzNTY2NzYzNjE=","number":688,"title":"L2TP/IPsec connection not working with recent SoftEther VPN Server versions running on Windows XP","user":{"login":"jartester","id":22844929,"node_id":"MDQ6VXNlcjIyODQ0OTI5","avatar_url":"https://avatars1.githubusercontent.com/u/22844929?v=4","gravatar_id":"","url":"https://api.github.com/users/jartester","html_url":"https://github.com/jartester","followers_url":"https://api.github.com/users/jartester/followers","following_url":"https://api.github.com/users/jartester/following{/other_user}","gists_url":"https://api.github.com/users/jartester/gists{/gist_id}","starred_url":"https://api.github.com/users/jartester/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jartester/subscriptions","organizations_url":"https://api.github.com/users/jartester/orgs","repos_url":"https://api.github.com/users/jartester/repos","events_url":"https://api.github.com/users/jartester/events{/privacy}","received_events_url":"https://api.github.com/users/jartester/received_events","type":"User","site_admin":false},"labels":[{"id":73018835,"node_id":"MDU6TGFiZWw3MzAxODgzNQ==","url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/labels/bug","name":"bug","color":"fc2929","default":true},{"id":1032975530,"node_id":"MDU6TGFiZWwxMDMyOTc1NTMw","url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/labels/os/Windows","name":"os/Windows","color":"b20849","default":false},{"id":1003815783,"node_id":"MDU6TGFiZWwxMDAzODE1Nzgz","url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/labels/protocol/L2TP","name":"protocol/L2TP","color":"006b75","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":7,"created_at":"2018-09-04T06:59:13Z","updated_at":"2018-09-10T22:35:07Z","closed_at":null,"author_association":"NONE","body":"* [ ] Can you reproduce? -> Yes.\r\n* [ ] Are you running the latest version of SoftEtherVPN? -> Yes, I tried it too but the one that works for me is an earlier version.\r\n\r\n**SoftEther version:**\r\nsoftether-vpnserver_vpnbridge-v4.27-9668-beta-2018.05.29-windows-x86_x64-intel.exe \r\n\r\n**Component:** [Server, Client, Bridge, etc.] ->Server\r\n**Operating system:** [Windows, Linux, BSD, macOS, etc.] -> Windows (XP SP3)\r\n**Architecture:** [64 bit, 32 bit] -> 32 bit\r\n\r\n[In case it's a computer with known specs, such as the Raspberry Pi, you can specify it omitting the details.]\r\n**Processor:** [Specify brand and model. Example: AMD Ryzen 7 1800x]\r\n\r\nDoesn't matter, tested on very different CPUs and machines.\r\n\r\n### Description\r\n\r\n[Description of the bug]\r\n\r\n**Expected behavior:**\r\n To accept L2TP/IPSec PSK connections\r\n\r\n**Actual behavior:**\r\n[What actually happened]\r\nThe negotiation process does not pass\r\n\r\n### Steps to reproduce\r\n\r\n1. [First step] Install any version *HIGHER* (newer) than \"softether-vpnserver_vpnbridge-v4.25-9656-rtm-2018.01.15-windows-x86_x64-intel.exe\"\r\n2. [Second step] Try to connect to it from Android device with L2TP/IPSec PSK (no other clients tested). Your attempt will fail. You can dig the exact error from log files on the server side. As far as I remember it was some kind of internal error. \r\n3. Uninstall current version and Install \"softether-vpnserver_vpnbridge-v4.25-9656-rtm-2018.01.15-windows-x86_x64-intel.exe\". \r\n\r\n4. Try to connect the same VPN, don't touch the settings at all again and you will succeed.\r\n"},"comment":{"url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/issues/comments/420083892","html_url":"https://github.com/SoftEtherVPN/SoftEtherVPN/issues/688#issuecomment-420083892","issue_url":"https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/issues/688","id":420083892,"node_id":"MDEyOklzc3VlQ29tbWVudDQyMDA4Mzg5Mg==","user":{"login":"davidebeatrici","id":5897523,"node_id":"MDQ6VXNlcjU4OTc1MjM=","avatar_url":"https://avatars3.githubusercontent.com/u/5897523?v=4","gravatar_id":"","url":"https://api.github.com/users/davidebeatrici","html_url":"https://github.com/davidebeatrici","followers_url":"https://api.github.com/users/davidebeatrici/followers","following_url":"https://api.github.com/users/davidebeatrici/following{/other_user}","gists_url":"https://api.github.com/users/davidebeatrici/gists{/gist_id}","starred_url":"https://api.github.com/users/davidebeatrici/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/davidebeatrici/subscriptions","organizations_url":"https://api.github.com/users/davidebeatrici/orgs","repos_url":"https://api.github.com/users/davidebeatrici/repos","events_url":"https://api.github.com/users/davidebeatrici/events{/privacy}","received_events_url":"https://api.github.com/users/davidebeatrici/received_events","type":"User","site_admin":false},"created_at":"2018-09-10T22:35:07Z","updated_at":"2018-09-10T22:35:07Z","author_association":"MEMBER","body":"#294 added SHA-256, SHA-384, and SHA-512 support to the protocol, but part of it was removed in faee11ff096e7950b006ef1ae8dc636b6fe0131e, presumably because it broke C89 compatibility.\r\n\r\nhttps://github.com/SoftEtherVPN/SoftEtherVPN/blob/8fdd224ba7f5676f99d74c7c63f60e046d07ec97/src/Cedar/Proto_IkePacket.c#L3003-L3014"}}
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