Questions tagged [ikev2]
The ikev2 tag has no usage guidance.
101
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Windows 10 builtin IKEv2 VPN does not have option for preshared key
I configured Routing and Remote Access on Windows Server 2019, then built-in VPN Type IKEv2 + PSK:
Filled the PSK in "Allow custom IPsec policy for L2TP/IKEv2 connection" (rrasmgmt.msc)
...
- 37.1k
8
votes
1
answer
1k
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How to limit bandwidth per VPN connection?
I have a StrongSwan (IKEv2) server setup and would like to limit each VPN connection to 512kb/s.
After researching I came across tc in Ubuntu. I don't quite understand it and am fighting through the ...
- 130
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votes
2
answers
5k
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Strongswan IKEv2 for iOS devices
I want to connect a Strongswan IKEv2 VPN on iOS devices. It uses FreeRADIUS server for AAA of users.
It's already working perfectly on Android and Windows devices. but when I try to connect using ...
CommunityBot
- 1
0
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0
answers
690
views
IPSec Example for a Password Authentication
I am trying to configure an ipsec (strongswan) vpn client to connect to my ISP-provided router's VPN.
I only have a username and password, no certificates.
In the documentation the provided (https://...
- 11
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27
views
Swastrong IPSec with Password Authentication
I'm in the exact same situation as sashok_bg here : I'm trying to access my Freebox pro VPN through Swanstrong client vpn on Debian.
So far, with what has been said in his converstation with ecdsa, ...
- 11
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votes
1
answer
317
views
Strongswan VPN Client (Android) can't connect to my test Kerio Control server
I have the following issue: I set up a Kerio Control 9.4.4 build 8365 and tried to connect to VPN server through Android 14+ device. I used Strongswan(Android) for this, but I got the following error ...
- 1
0
votes
0
answers
121
views
IKEv2 with certificate + EAP between an IPsec client a VPN server on an OpenWRT router, and a FreeRADIUS - Auhtntication issue
I need your help and expertise to resolve a situation I'm facing. I'm currently testing an IPsec tunnel using IKEv2 with certificate + EAP between an IPsec client (TheGreenBow), a VPN server on an ...
- 2,092
3
votes
2
answers
4k
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EAP / MSCHAPv2 authentications fails (only) on Windows with custom authenticator
I have a project that involves custom client authentication for the StrongSwan IKEv2 server implementation on Linux.
I am running: StrongSwan 5.4.0 with eap-radius plugin
Currently, we use FreeRadius ...
CommunityBot
- 1
0
votes
0
answers
55
views
strongSwan: Accessing LAN of a Windows client (reversed remote access)
I am currently having an Ubuntu Server strongSwan setup (IKEv2, EAP-MSCHAPv2) that will allow any authorized remote Windows client to access server's LAN (192.168.7.0/24). It works perfectly, but I ...
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33
views
Is iptables NAT forwarding possible bewteen two libvirt VMs?
I'm building a test VPN setup using two libvirt VMs with StrongSwan
IKEv2 but can't get traffic to forward. I can see the client sending
traffic to the server using tcpdump but the server doesn't do
...
- 1
0
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0
answers
142
views
Change IPSec IKEV2 VPN Default Ports 500 & 4500 To Anothers
For some reason OpenVPN is working on my local machine very well, But IPSec IKEV2 VPN not & it only works when OpenVPN is connect.
I have a domain for IPSec IKEV2 VPN & in local machine vpn is ...
- 15
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votes
0
answers
63
views
Unable to acces on some websites when connected to VPN IKEv2 server from linux
I have a VPN server hosted on Windows 2019 and configured on IKEv2,
Everything works very well from all clients, however on Linux clients I have one last point to adjust, so for clarification I use ...
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answers
183
views
StrongSwan IPSec VPN - IKEv2 - LetsEncrypt Certificate Issue (building CRED_PRIVATE_KEY - RSA failed, tried 10 builders)
I followed the link below for setup IKEv2 VPN Using Strongswan and Let's encrypt on CentOS 7.
How to Setup IKEv2 VPN Using Strongswan and Let's encrypt on CentOS 7
But info on that link has been ...
- 15
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votes
0
answers
508
views
Cannot access network resources after connecting to Always On VPN
Background: recently moved offices to a new network that did not have any domain controllers. The network here has a basic WiFi router that has both DNS and DHCP. We moved our DC here that has our ...
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0
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428
views
Why is my EdgeRouter-X IKEv2 VPN tunnel not working for HTTP/HTTPS on port 5000/5001?
I've configured my EdgeRouter-X for an IKEv2 VPN Tunnel using self signed certificates. I'm using this VPN to access my home network from my Android phone and my iPad.
I can connect from both devices ...
0
votes
0
answers
470
views
RRAS IKEv2 MacOS 13.4.1 unable to connect since upgrade to Ventura
I encountered a problem when trying to connect to a VPN server configured in IKEv2 from MacOS (Ventura 13.4.1) on a fresh install.
The VPN server is a RRAS hosted in a Windows server 2019, its ...
- 386
0
votes
0
answers
416
views
AWS StrongSwan IPSec Tunnel with Cisco fails during Phase 2 with TS_UNACCEPTABLE
I need to to setup a site-to-site IPSec tunnel with a vendor whom We need to access each other's API servers seating on the LANs using their respective Public IPs. We're using AWS, And I have ...
- 101
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0
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832
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Windows native client not connecting to IKEv2 EAP VPN
We are investigating the possibility of replacing pfSense/opnSense with Mikrotik for our office routers. Our current routers provide site-to-site tunnels between locations, as well as RADIUS-backed ...
- 974
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0
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1k
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How to set up StrongSwan (behind NAT) IKEv2/IPSec with PSK (pre-shared key)?
I set up my strongswan server on a virtual Ubuntu 22 behind a NAT. It works well for RCA using login password.
But I need to work using only PSK key. I tried a bunch of options, I can not connect from ...
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0
answers
597
views
Windows 11 IKEv2 fails to connect, error code 1931 eventID 20227
I have Mikrotik configured for accepting IPSec connections with server certificate and RADIUS auth, SHA1 and so on enabled on Mikrotik side for Windows compatibility.
It also configured for L2TP/IPSec,...
- 167
1
vote
1
answer
897
views
My Win 11 Pro VPN client for IKEv2 is perpetually broken
I am tearing my hair out over this sudden refusal of Windows 11 Pro on my PC to use the appropriately configured crypto in IKEv2 negotiation. It worked fine for a long time, until it didn't. This ...
- 386
1
vote
2
answers
2k
views
Checking existence of IPSEC as a meta expression in nftables
Whilst recently setting up a router manually from scratch using Debian, I decided to use nftables along with strongSwan to provide an IKEv2 VPN access into this.
After much frustration along with ...
0
votes
1
answer
8k
views
StrongSwan clients fail to connect, Constraint checking failure
Client devices (Runs Windows 10 and Android with StrongSwan app) fail to connect. Certificates signed by one authority, CN is set as server public ip.
Here's ipsec.conf:
config setup
include /var/lib/...
1
vote
0
answers
471
views
issue with connecting to IKEV2 VPN server from android devices
We are facing a problem with connecting android devices to our VPN server. iOS devices do not have any problems connecting.
Android devices trying to connect via StrongSwan official app from Google ...
- 4,494
2
votes
1
answer
7k
views
Strongswan Error: no config named 'foo'
On Ubuntu 20.04, I am trying to establish a VPN tunnel to a IKEv2/Ipsec VPN site using Strongswan.
However, even though I have the file /etc/ipsec.conf as shown
# ipsec.conf - strongSwan IPsec ...
- 1
1
vote
1
answer
1k
views
Site-to-Site VPN and Remote Access VPN with Strongswan
I've recently deployed a Strongswan IKEv2 Remote Access VPN in two different sited with two different ubuntu servers. It all works great, but now i want to "merge" the two sites with a site-...
- 101
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0
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321
views
ike-scan 0 returned handshake 0 returned notify
I need to establish vpn connection to a specific site, I used strongswan and configure my side according to the provided parameters from another side, but when I try to connect I get 'peer not ...
1
vote
1
answer
3k
views
Is strongSwan eap-mschapv2 authentication secure vs using certs?
What level of encryption is used during the authentication part of the connection?
Here’s a sample /etc/ipsec.conf configuration.
config setup
charondebug="ike 1, knl 1, cfg 0"
uniqueids=no
...
CommunityBot
- 1
1
vote
1
answer
3k
views
StrongSwan ikev2 routing through VPN in Windows 10
I'm trying to create an ikev2 VPN using StrongSwan on an ubuntu server.
Now, in Windows 10 clients, use default gateway on remote network option is off by default; so when I connect to the server, ...
CommunityBot
- 1
1
vote
1
answer
2k
views
OCSP verification fails in Strongswan (IKEv2)
I've managed to set up an IPsec connection between two (virtual) hosts in transport mode and now I want the server to validate the client's certificate with OCSP. In a third host, I've run an OCSP ...
CommunityBot
- 1
-1
votes
1
answer
850
views
Strongswan & Windows client: connection freezes in a few minutes
On an AWS VPS, I installed Strongswan to use it as a VPN. It works fine with iPhone client. However, when I try to connect from a Windows client, the SA connection gets established successfully and ...
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0
votes
1
answer
1k
views
Failed to start the IKEv2 VPN connection to surfshark via NetworkManager
I try to connect to surfshark VPN provider through IKEv2 manually. Here are the logs
charon-nm[5070]: 05[CFG] received initiate for NetworkManager connection Surfshark IKE2
charon-nm[5070]: 05[CFG] ...
- 4,112
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1
answer
1k
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EAP-MS-CHAPv2 verification failed Arch Linux (strongswan)
I cannot get Strongswan, networkmanager-strongswan (client)
work on your Arch-PC. My vpn-strongswan server (hereinafter deb (server)) has been configured for a long time, any devices (such as android, ...
0
votes
1
answer
945
views
pfSense as IPSec remote access client
I have a pfSense router in a residential environment and need to use IPSec/IKEv2 as a remote access client to a commercial VPN provider. I know the pfSense web UI doesn't support the router being the ...
- 8,841
-1
votes
1
answer
2k
views
Cannot connect a Fortigate VPN behind a static NAT to a GCP VPN gateway
Here's the need:
Connect a Fortigate device behind a static 1:1 NAT to the Internet to a Google Cloud Platform (GCP) VPN gateway.
Simplified ASCII Diagram:
LOCAL_LAN ---- Fortigate ----- Fiber modem --...
google-cloud-platform
- 4,494
2
votes
1
answer
747
views
firehol ipsec configuration
Just discovered that apple dropped pptp support in the newest MacOSes, so configured ikev2 ipsec access instead. Clients are happy, everything is simple and good except one thing - ipsec clients ...
- 336
1
vote
0
answers
315
views
libreswan with Ikev2 client and plain text password
I need to set up a connection to VPN server with Libreswan. I can't use strongswan, since they are not working well together when installed on the same OC.
My system is Linux Debian 10 (Buster)
Kernel ...
- 249k
0
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0
answers
365
views
Vpn . Nps . Active directory . Strongswan ikev2
please help me
I configured a strongswan IKEV2 On Centos7 vps
and NPS and Active Directory for my authentication and accounting(radius) on windows server 2016 vps
when i want to connect to my ikev2 ...
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3
votes
1
answer
4k
views
iPhone users does not connect to StrongSwan VPN, while Android and Windows 10 users do?
I have a StrongSwan VPN that for some reason unknown to me cannot connect iOS users to my VPN server.
A few quick notes:
My StrongSwan server is front for VPN clients who connects to my network. I ...
- 4,112
0
votes
0
answers
2k
views
Cannot connect MacOS to StrongSwan VPN server installed on ubuntu
I have an issue connecting to IKEv2 VPN running on an Ubuntu VM on GCP. I am trying to connect with MacOS and Windows. I followed this tutorial to install the VPN on an Ubuntu VM. I need a VPN so that ...
- 131
-1
votes
1
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150
views
How to run Windows Ikev2 with NonetworkFirewall?
I have a small problem.I setup Firewall App Blocker in whtielist Mode(means basically It cut all Internet except allowed apps by setting "block all connection that not match firewall rule" ...
- 1,658
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1
answer
6k
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IKev2 strongswan got deleting half open IKE_SA with x.x.x.x after timeout with iOS device
I installed an IKEv2 strongswan vpn server on ubuntu 18.04 and also I use a valid Let's encrypte CA for that. I want to use it on an application for iOS.
So here is the IPSec.conf :
config setup
...
- 11
1
vote
0
answers
153
views
How to disable all default cryptographic algorithms but the explicitly defined ones in OpenIKED?
I am having issues with setting up highly secure but still high performance IKEv2 tunnels between multiple data centers on OpenBSD nodes, by using very strict security features and allowing the use of ...
- 11
1
vote
2
answers
3k
views
Determining root cause of Windows VPN Connection Error 13801
I'm trying to get machine authentication working with Microsoft "always on vpn".. I'm running into error 13801 on attempting to connect with a client. This error implies there is some sort of ...
- 8,996
6
votes
2
answers
3k
views
Setting up IPSEC on LAN between two hosts (OpenBSD)
Trying to use IPSEC between two hosts on a LAN. No VPN involved
Using OpenBSD 5.8 (in VirtualBox). I'd prefer to use OpenBSD's built-in support for IPSEC and key exchange and not a third-party.
Two ...
- 67
2
votes
2
answers
2k
views
how to use wildcard certificate with ikev2 on strongswan
I am using a wildcard certificate.
I have managed to setup ikev2 protocol, applied my own certificate but it won't work for subdomains.
Is there any workaround for this or the wildcard should be ...
- 168
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votes
0
answers
633
views
RRAS IKEv2 VPN no response
We have an IPSEC/L2TP PSK VPN on Windows Server 2012 using RRAS. This usually works fine, but now with so many staff working from home due to COVID-19, I am getting complaints of the VPN dropping out ...
- 1
0
votes
0
answers
931
views
Is it possible to have 2 left ids in strongswan?
I need my strongswan server to operate on 2 domain names .
ipsec.conf currently contains : [email protected]
How can I add another domain ? Is this syntax gonna work?
[email protected],@sub2....
- 27
0
votes
1
answer
793
views
IKEv2 VPN on server 2019 suddenly stops working
We have a number of customers using Server 2019 as a VPN server with the IKEv2 protocol through the Routing and Remote Access (RRAS) service. Suddenly, every single one of them gets the following ...
0
votes
1
answer
400
views
Does ikev1 or ikev2 support a no-authentication option? If so, how can I enable that in strongswan?
For testing purposes, I want to setup an ipsec tunnel using IKEv1 or v2 (preferably v2) that does not require any authentication - so just using the protocol to agree on the secret-keys of the ipsec ...
CommunityBot
- 1
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