IPsec

• Y

  pfsense to google cloud (VTI problem)
  • Yordan Georgiev

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  Fix works fine! Tnx!
• N

  Multiple Site to Site and routing
  • nappy_d

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  So if I did this right this is what I did but it is not working. The following was added to the customer's pfSense. I added this to my Home Office pfSense Nothing was added to the Cloud pfSense but no luck. Any thoughts?
• T

  Route External IP over IPSec VPN (NAT'ed) on pfSense 2.2.5
  • TReminga

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  IPSec tunnel - No traffic
  • bpados

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  @derelict said in IPSec tunnel - No traffic: When you ping from pfSense you have to be sure to source it from something interesting to IPsec. Use the -S flag or the Source address pulldown in Diagnostics > Ping. will do, thanks. So far I mostly tested from my laptop (within LAN).
• D

  IPSEC failed to run after 2.4.4 upgrade
  • dtrandov

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  Understood for the default strip level of the system patches package. This worked also for us and we now have a working 2.4.4 system. Thanks jimp!
• M

  IPSEC with RSA Failed to Establish connection
  • mcphersond

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  Many thanks for this. I have solved the issue and managed to get this all working. For the benefit of the forum. Here is what I needed to do. Create a CA in firewall A Create a self service server certificate on firewall A using CA on firewall A with the DN=firewall A Distinguished Name and Alternative name of the external IP of firewall A. Create a self service server certificate for firewall B using CA on firewall A. Export CA and cert of firewall B from firewall A. Import CA and cert for firewall B on firewall B. Ensure that my identifier and peer identifier are ASN1.
• M

  routed site-to-site ipsec packets loss
  • mrco

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• Y

  VTI MTU Not Persistent
  • YoungPeach

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  That's quite okay! It's functioning fine on the 1400, just trying to sneak those few little extra bytes out of the connection, that's all. :)
• A

  Site to site vpn using virtual ips
  • aamdevan

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  @aamdevan said in Site to site vpn using virtual ips: Site 1 lan 192.168.1.0 default gateway 192.168.1.253 virtual network 192.168.20.0 Site 2 lan 192.168.2.0 default gateway 192.168.2.253 virtual network 192.168.15.0 No idea what you mean there by virtual network. Others might be able to grok it. I might need a picture drawn.
• A

  Vpn with different gateway
  • aamdevan

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• Y

  IPSec VTI to EdgeRouter
  • YoungPeach

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  To answer my own question now: VTI tunnels cannot be set up with 0.0.0.0 as the remote peer, you must use an IP address or domain name.
• P

  Two Mobile IPsec tunnels, One IP
  • pyite

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• K

  Can i use an Mail (FQUN) Identifier with password?
  • kts-tec

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  You can try that but if it expects an actual IKEv2 EAP password that isn't going to work. pfSense does not have a way to setup IPsec EAP auth for site-to-site tunnels or outgoing IPsec connections.
• R

  IPsec VPN routing works for clients but not for traffic from pfSense
  • Ruu

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  Thank you, I missed that part when looking in the manual...
• T

  HELP! I lose internet after establishing a VPN IPsec link
  • thetoxic

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• S

  Mixed Main / Aggressive negotiation mode possible?
  • str8shot

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  No, though I would expect Aggressive mode to allow main to work (since it's more secure), but clearly it isn't working there given that error. You can't pick both main and aggressive in a single P1, and there isn't a way to define more than one mobile P1.
• K

  VPN IPSec - one site has a dynamic ip
  • kts-tec

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  On the lancom i can set the identifier to mail (fqun). I dont find a identifier on the pfsense for mail (fqun). Is it possible to use a fqun on the pfsense as identifier? I'm talking about the dyndns with the it department.
• W

  forceencaps switch
  • wickeren

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  In the P1 settings set NAT Traversal to force. That will put forceencaps = yes in the config for that tunnel.
• D

  ipsec tunnel - no traffic from client side
  • dignus81

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• R

  IPSEC Permission? issue…
  • rcapra

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  Start your own thread.
• M

  IPSEC Encryption Proposals dont change
  • mbit

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  I found it configured the encryption settings properly for phase 1 when the configuration for phase 2 was done. Thanks for the follow up. The issue was just me not configuring the VPN properly.
• M

  VPN IPsec site_to_site with Cisco router issue
  • MohamedKanzi

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  C2811 is not Cisco ASA but try to follow this guide: IPsec between pfSense and Cisco ASA: Setup cross vendor IPsec VPN sometimes is tricky, due differences in protocols implementation. There are several important nuances here: Do not use auto-negotiation at all. Set certain parameters manually. Usually it is aes128-sha1 and pfsgroup 2 or 5 Make sure P2 settings describes exactly the same networks, because ASA demands IPsecProxyID has to be the same on both devices, one is composed from P2 networks, so that they must be the same. E.g. local:10.0.0.0/24 remote:10.1.0.0/24 on one side and local:10.1.0.0/16 remote:10.0.0.0/24 on another is wrong, even formally network connectivity is possible for them in some way. Cisco ASA uses list of policies for matching possible policy. This might make additional problem. Set certain policy on top of list, e.g. esp-aes128-sha1 pfsgroup 2 has to have 1st sequence number.
• R

  VPN over VPN?
  • rooty

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  Thanks, i needed this and could make it worked too.
• E

  PfSense 2.4.4 LAN interface stops routing traffic - stops working after some minutes, sometimes hours
  • e066377

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  Here is my solution; The vpn connection is used to call webservices (soap) of the remote site. To check every connection I created a derived class of SoapHttpClientProtocol from which webservice references are derived and edited all service references and drived them from new class NWSoapHttpClientProtocol. C# code public class NWSoapHttpClientProtocol : SoapHttpClientProtocol { protected new object[] Invoke(string methodName, object[] parameters) { try { return base.Invoke(methodName, parameters); } catch { RenewLocalIP(); return base.Invoke(methodName, parameters); } } private void RenewLocalIP() { try { ProcessStartInfo processStartInfo = new ProcessStartInfo(); processStartInfo.FileName = "ipconfig"; processStartInfo.Arguments = "/release "; processStartInfo.WindowStyle = ProcessWindowStyle.Hidden; Process process = Process.Start(processStartInfo); process.WaitForExit(); processStartInfo = new ProcessStartInfo(); processStartInfo.FileName = "ipconfig"; processStartInfo.Arguments = "/renew"; processStartInfo.WindowStyle = ProcessWindowStyle.Hidden; process = Process.Start(processStartInfo); process.WaitForExit(); EventLogger.Log(LogType.Information, MethodBase.GetCurrentMethod(), "Renewed Local IP"); } catch (Exception ex) { while (ex.InnerException != null) { ex = ex.InnerException; } EventLogger.Log(LogType.Error, MethodBase.GetCurrentMethod(), ex.Message); } } } InvokeAsync methods of SoapHttpClientProtocol can also be implemented.
• H

  IPSEC VTI and traffic shaper
  ipsec vti qos • • haluwong

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  No, you cannot use it with ALTQ. You could use limiters, however.
• E

  IPSec issues
  • emammadov

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  No idea what the Mikrotik will do but, yes, both sides need to support it. Set a maintenance window, try it, and see.
• S

  IPSEC over PPPOE VIPs not working
  • syndicate604

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  Our problem seems somewhat similar to https://forum.netgate.com/topic/132468/closed-can-t-reproduce-ipsec-using-alias-ip-instead-of-wan-ip/17
• A

  [SOLVED] IPSec status vs GUI
  • alanwds

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  Thank you by your insight @jimp. I just change the keyword on my script (to monitor VPN tunnels on zabbix) to know if the tunnel is up for "rekeying" insted of "ESTABLISHED". If you wanna take a look: https://github.com/alanwds/zabbix_ipsec_pfsense Thank you so much.
• A

  [Solves] No IPSEC connection after 2.4.4 upgrade to some hosts
  • andipandi

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  There isn't an IPsec traceroute exactly, but you can use hping to get a similar effect. For example, to see how far ESP (tunneled traffic) makes it, run this command: $ hping -0 1.2.3.4 -H 50 -d 10 -t 1 Replace 1.2.3.4 with the far side, and increase the -t value until you do not get a response. That's where it gets dropped. I see -T in the hping settings now and it might be helpful as well. If the tunnel won't connect at all, however, that would be a simple UDP test for port 500 and 4500. For that you can probably use a traditional traceroute command with -P UDP -p 500 and again for -p 4500.
• J

  IPSec VPN Routing Issue
  routing ipsec • • jkurzawa92

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  2.3.2... I just don't get this.. Why would you not be on at least 2.3.5p2? 2.3.2 is no longer supported.. And to be honest the 2.3.x line is EOL here soon.. Like tmrw ;) https://www.netgate.com/blog/pfsense-release-2-3-x-eol-reminder.html
• O

  How to configure IKev2+radius authentication
  • Ohbyeongkwon

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  Thank you for the good information. I'm sure I'll succeed.
• C

  pfSense IPSec VPN to non-pfSense with dual peer
  • cwAestoHealth

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  Not easily. You can make a VPN to a hostname, and if the remote peer can update the hostname when a failover happens, that can trigger a failover. There isn't a way to use both peers at once at the moment though, not with tunneled IPsec. With routed IPsec (VTI) you could nail up a tunnel to both peer addresses and use a routing protocol like OSPF or BGP to decide when to fail over.
• A

  2.4.4 Multiple tunnels to same endpoint
  • alifen

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  @jimp said in 2.4.4 Multiple tunnels to same endpoint: When you make a P1 to a remote peer, it adds a static route to that peer out the chosen interface. Ah ha, that explains the behaviour! Forgive my naivety, but why is the static route required? Is there another mechanism we could use to make sure the connection exits via the right interface? I am imagining something similar to PBR but for host traffic...
• V

  Cannot get multiple phase 2 to work on site-to-site (pfsense 2.4.4), connection to AWS
  • VPTechnik

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  Thank you very much for your suggestion. I've reconfigured the tunnel to use VTI and since some days it stays quite stable. The routing seems to work fine for all subnets.
• С

  ipsec port 1024 problem
  • сергей

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  That is probably what the far side used to contact you. pfSense will reply back to whatever port the far side used, since it was probably run through NAT or had some other similar translation done along the way. There may not be anything you can do about that on your side, the far side probably needs to fix whatever is changing that port.
• G

  IPSec mobile clients with static IP
  • guyverland

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  Radius, I think the AD server can provide radius, you'll also need to set up framed ip addresses. I use the inbuilt radius server, my user configs look something like this:- "andy" Cleartext-Password := "xxxxxxxxxx", Simultaneous-Use := "1", Expiration := "Apr 11 2027" Framed-IP-Address = 172.16.8.2, Framed-IP-Netmask = 255.255.255.0, Framed-Route = "0.0.0.0/0 172.16.8.1 1" "Fred" Cleartext-Password := "xxxxxxxxxx", Simultaneous-Use := "1", Expiration := "Apr 11 2027" Framed-IP-Address = 172.16.8.3, Framed-IP-Netmask = 255.255.255.0, Framed-Route = "0.0.0.0/0 172.16.8.1 1"
• C

  Routed IPsec - Remote Site Policy Based IPsec
  • Cyren91

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  Unfortunately, NAT won't work with routed IPsec so you might be a bit of a bind there. It's an issue in FreeBSD with how if_ipsec and pf interact. For the larger issue there, you don't setup P2 entries with routed IPsec like that. You just setup static routes, and send the traffic through the tunnel. The far side should still accept the connection as long as the networks passing through match what it expects. Normally you'd want to do routed on both ends, however, not just one.
• I

  IPSec VPN not passing traffic
  • Irwin W.

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  Thanks for the info. I just checked on both systems and this option was already disabled. Should I maybe enable it? Interestingly though: pfSense A is having trouble with pfSense B's site to site tunnel pfSense B is however able to establish 4 other siste to site tunnels successfully and communicate. THis 5th tunnel to pfSense A just refuses to work.
• J

  2.4.4 IPsec Logs
  • JOTS

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  TCP not routing through IPsec tunnel - MSS issue?
  • baketopher

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  @chrismacmahon said in TCP not routing through IPsec tunnel - MSS issue?: Can you try disabling the setting of Asynchronous Cryptography? This is located in VPN - IPSEC - Advanced setting bottom of the page. @chrismacmahon - this setting was already disabled in my config - I don't have the box Asynchronous Cryptography checked.