IPSec tunnel problems after pfSense 2.2.3 upgrade

vbentley

I was using certs on 2.2.2 but the tunnels wont come up on 2.2.3 .
I will try PSK instead to see if I get the same problem as you before reinstalling 2.2.2 .

jdp0418

Are you seeing any errors in the IPSEC log?
EDIT I should have asked if you have debugging enabled and if you are seeing errors in the logs with the debugging on. /EDIT

IPSEC can be a temperamental beast. What does the far end look like? Does it still have security associations stuck from when the IPSEC tunnel was up prior to the upgrade? Can you try to send traffic from the far end to a specific IP on the side you upgraded? Often times IPSEC needs 2-way traffic to properly reinitialize the tunnels, specifically when one side is reset and the other side is not.

RMB

I don't see any IPSec errors logged, not on the pfSense side and not on the two other sides (Stormshield and Draytek).
I control all these products and have restarted everything, without any luck.
The tunnels are connected without problems, phase 1 and phase 2, but no traffic is passing thru the tunnel.
With pfSense 2.2.2 this was working fine.
Debug logging is not enabled yet….

jdp0418

You posted stats that show traffic is being sent out of the enc0 interface, but not being received back in. Can your other firewalls produce similar statistics?

If you are sending traffic out over the enc0 interface, the other sides should be receiving traffic. It would be interesting to see if those IPSEC tunnels are sending traffic. Since your PFSense doesn't show any blocked or passed traffic IN, then at least it would appear it isn't receiving any traffic at all.

RMB

I have checked with ssh on both sides and can see the trafic going into the tunnel on the pfSense but not coming out on the Stormshield and vice versa. So it seems to get lost in a big black hole :-)

It seems that I am not alone;
https://forum.pfsense.org/index.php?topic=95659.0

There are a lot of IPSec related problems mentioned on this forum after upgrading to v2.2.3.

jdp0418

Yeah, seems you might be getting smacked with a bug since others are experiencing the same thing.

You stated you rebuilt your tunnels… did you try rebuilding the rules? Maybe the rules somehow became dis-associated with the IPSEC tunnel.

dharrigan

Hi,

Having the same issue too. VPN up (to Amazon), but no traffic flowing.

-=david=-

RMB

I have created some new allow-any-any rules above all existing rules to check if it was rule related, but that didn't help. So I think it is not rule related….
OpenVPN is still running fine, it is purely IPSec related.

jdp0418

Hmm, gremlins perhaps…

I have 2 PFSense units I just upgraded today to 2.2.3 (i386). I have a tunnel between them. I did have to "manually" start the tunnel, but these are units I use specifically for testing, so they don't really send traffic over the tunnel unless I create it.

Anyway, I just manually started the tunnel and it came up and I am able to ping across the tunnel. I am using fairly standard settings and seems pretty close to your build.


 config setup
        uniqueids = yes
        charondebug=""

 conn bypasslan
        leftsubnet = 192.168.1.11/32
        rightsubnet = 192.168.1.0/24
        authby = never
        type = passthrough
        auto = route

 conn con1000
        fragmentation = yes
        keyexchange = ikev1
        reauth = yes
        forceencaps = no
        mobike = no
        rekey = yes
        installpolicy = yes
        type = tunnel
        dpdaction = none
        auto = route
        left = x.x.x.x
        right = y.y.y.y
        leftid = x.x.x.x
        ikelifetime = 28800s
        lifetime = 28800s
        ike = aes256-sha256-modp1024!
        esp = aes256-sha256-modp1024!
        leftauth = psk
        rightauth = psk
        rightid = y.y.y.y
        aggressive = no
        rightsubnet = 192.168.230.0/24
        leftsubnet = 172.16.100.1|192.168.1.0/24

Granted, this is between 2 PFS hosts. I can't speak to how IPSEC is working to other firewalls under 2.2.3.

jdp0418

Silly question, but do you see any "blocked" packets the WAN of your firewall for packets coming from the far end firewalls (and vice versa)? I don't mean IPSEC in particular, I am just curious since the enc0 interface isn't reporting any received packets, are any of those packets actually reaching the firewall and getting blocked.

yuljk

Just want to chime in and say I am also experiencing this issue after a successful upgrade to 2.2.3 - IPSec working fine before the upgrade.

Chris

frmpf

Another "me too". I've got a pair so I updated only the secondary. The primary, still on 2.2.2, works fine for all tunnels. The secondary on 2.2.3 has dead tunnels. ESP traffic is going both directions, DPD packets exchanged, but nothing makes it to the remote LAN at either end.

The remote endpoints are a Cisco (no access for me) and an OpenBSD host (full access). I have taken a lot of notes, verbose outputs of "ipsec statusall" and "ipsecctl -sa -v" from each end, and traffic captures to try to compare the difference between the working 2.2.2.<->OpenBSD and the broken 2.2.3<->OpenBSD, but nothing jumps out to my relatively untrained eye.

The Cisco tunnel is also dead when on 2.2.3, I just can't troubleshoot from the Cisco end. It works great on 2.2.2 though.

It's not well organized or anything but if it helps someone else help us all figure out what's broken, it's ZeroBin'ed at: http://sebsauvage.net/paste/?1659557931393c28#Rt+LFQvj5kP8L0Bhv5D/8N7ZNypDZ9Wz7y9fMPXnuZU=

Darkk

Glad I am not the only one with this exactly same problem. We use WatchGuard at the office and been working great right up to PfSense 2.2.2. Soon as I upgraded it to 2.2.3 IPSec stopped working. Far as I can tell Phase 1 and Phase 2 are working. Just it's not passing traffic over the tunnel like it should. On my PfSense I do have the pings to hit a sever at work to keep the tunnel alive. That is not even working.

Then I thought it's a firewall rules / routing issue since I actually don't have IPSec rules setup and didn't need to since I only want to access the servers from my house and not the other way around. I created the pass rules anyway. No luck.

I don't have any packages installed that would account for this. I may have to roll back to 2.2.2 until it's been fixed. Bummer. Love the added features in IPSec but at this point can't use it.

pbnet

1
After upgrading from PFSense 2.2.2 to 2.2.3 (X64), my IPsec VPNs between PFSense and 2 Cisco RV042 (version 2 hardware) are now down.
The IPsec status show up as:

ADI_VPN xxx.isp.com 188.27.x.x
Port: 500 Any identifier 5.12.y.y
Port: 500 IKEv1
initiator 3DES_CBC:0
HMAC_SHA1_96:0
PRF_HMAC_SHA1
MODP_768

connecting

Connect

ADI_VPN xxx.isp.com 188.27.x.x
Port: 500 5.12.y.y 5.12.y.y
Port: 500 IKEv1
responder 47 minutes 3DES_CBC:0
HMAC_SHA1_96:0
PRF_HMAC_SHA1
MODP_768

established
5 seconds ago

Local LAN class: 172.77.17.0/24
Remote LAN class: 172.24.96.0/24

Thanks for any suggestion.
I will be coming later with screenshots if required.

nodau

Same here with local ipsec tunnel between vmware horizon view connection and security server. pfsense somehow blocks ipsec traffic although the udb ports 500/4500 are open in nat.

until this is fixed, i will use 2.2.2.

:(

stephenw10

It appears as though this maybe an error decrypting traffic from the remote host. Though we have not replicated it here yet, we use IPSec extensively and have been running 2.2.3 for some time internally.
Has anyone tried an encryption type other than AES?
Where exactly is this traffic being lost and are you all seeing the same thing?
Run a ping from behind pfSense 2.2.3 to to some host on the other side of the tunnel.
Run a packet capture on the ipsec interface in pfSense. I expect to see only the leaving echo requests there if the ping is failing.
If you can, run a packet capture at the other end. Do you see the ping requests and replies?
Run a packet capture on the pfSense WAN interface. Do you see the ESP (or UDP 4500 if you're using NAT-T) traffic leaving and returning from the remote tunnel end IP?

From the evidence we have gathered so far into this it seems as though the encrypted traffic is returning but not being decrypted correctly so never leaving the ipsec interface internally.
If any of you can confirm or refute that it would be very helpful.

Steve

vbentley

I am using 3DES with Broadcom hardware crypto cards. On 2.2.2 everything is fine.
Updating to 2.2.3 the phase 1 cannot be established as mutual RSA certificate authentication fails. After restoring 2.2.2, all of my tunnels authenticate again.

vbentley

I just looked on the pfSense bug tracker and there are no issues yet for 2.2.3
https://redmine.pfsense.org/projects/pfsense/issues?query_id=49
Does this one qualify?

stephenw10

It definitely will when/if we have it narrowed down to something. Or eliminated it in some other way.

Steve

yuljk

I've just switched across to 3DES from AES and the issue is still present :/

Shrewsoft VPN client throws a 'Gateway authentication error'

Chris