>>> 
> There exists an IPSEC bug in pfSense 2.1
> 
> When the router's modem is restarted, the IPSEC tunnel fails to come back
> up.
> 
> This bug is documented in the following places by numerous people:
> 
> https://redmine.pfsense.org/issues/3321 
> http://forum.pfsense.org/index.php/topic,69235.0.html 
> http://forum.pfsense.org/index.php/topic,68776.0.html 
> http://forum.pfsense.org/index.php/topic,67929.0.html 
> http://forum.pfsense.org/index.php/topic,67625.0.html 
> 
> Regards,
> Christian Borchert

Christian

I run an awful lot of IPSEC tunnels and I generally don't get the problem you 
describe in your trouble ticket which is not the same as the fault that is 
barely described in the first forum posting you link.  The rest are TL;DR for 
me.

Please try disabling DPD at both ends and set the address that you ping to any 
address other than those on the other end's router  - that address doesn't even 
have to exist, it just has to be within the remote subnet but not one that is 
bound to the router doing the IPSEC.

Incidentally your report in Redmine does not describe what the other end 
actually is - is it another pfSense box or something else?

Cheers
Jon

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