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0004234: IPsec VPNs in Endian 2.5 unstable, stop passing data - MantisBT
MantisBT - Endian Firewall
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0004234Endian FirewallNetwork related (VPN, uplinks)public2012-01-02 21:592012-02-03 13:51
0004234: IPsec VPNs in Endian 2.5 unstable, stop passing data
I have upgraded an existing firewall (clean install & reconfigure) from Endian 2.4.1 to 2.5 and the IPsec VPNs keep stopping after a few minutes. Their status shows green and if I restart them data flow will resume for another while.
No tags attached.
png ipsec-host-1.png (61,016) 2012-01-10 09:12

png ipsec-host-2.png (48,729) 2012-01-10 09:12

png IPSec VPN.PNG (48,294) 2012-01-23 16:37
Issue History
2012-01-02 21:59SotaNew Issue
2012-01-05 08:46christian-endianStatusnew => acknowledged
2012-01-10 09:05lorenzo-endianNote Added: 0007612
2012-01-10 09:05lorenzo-endianAssigned To => lorenzo-endian
2012-01-10 09:05lorenzo-endianStatusacknowledged => feedback
2012-01-10 09:12lorenzo-endianFile Added: ipsec-host-1.png
2012-01-10 09:12lorenzo-endianFile Added: ipsec-host-2.png
2012-01-17 09:00christian-endianNote Added: 0007633
2012-01-17 16:07SotaNote Added: 0007634
2012-01-19 14:29christian-endianNote Added: 0007636
2012-01-23 16:37SotaFile Added: IPSec VPN.PNG
2012-01-23 16:41SotaNote Added: 0007644
2012-02-01 14:48SotaNote Added: 0007685
2012-02-03 13:51SotaNote Added: 0007693
2012-02-03 13:51SotaStatusfeedback => resolved
2012-02-03 13:51SotaResolutionopen => fixed

2012-01-10 09:05   
Hi Sota,

I tried to reproduce the problem in my virtual environment but I am not able to do it: the connection between my two hosts works without problem even after some hours.

I suspect the problem is related to the packet loss on the network between your hosts, but I need to verify it.

In the meanwhile, I attach the configuration I used on my systems... can you check if you did the same? If something differs, can you report it, please?

Thanks in advance!

2012-01-17 09:00   
Any news on this?
2012-01-17 16:07   
Sorry, I am away from the office until Thursday, I will look at it then. However, it cannot be packet loss on the network as this configuration worked with Endian 2.4.1. I will try to upload my config files later.
2012-01-19 14:29   
Thank you very much!
2012-01-23 16:41   
So I have had another attempt at this. The attached image shows one VPN to a remote Endian 2.4.1 box that says the link is Open but does not pass any traffic. This used to work when my firewall was 2.4.1. I am seeing a lot of errors for this connection:
Jan 23 16:19:57 pluto[21718] packet from initial Main Mode message received on xxx:500 but no connection has been authorized with policy=PSK. Perhaps an openswan <==> strongswan interoperability issue?
Some of the other links do work intermittently.

Others are reporting similar issues: [^]
2012-02-01 14:48   
Since I moved to 2.5.1 this problem has not recurred.
2012-02-03 13:51   
Still working OK, so consider it fixed.