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Although I've been using pfSense now for some time and like it very much, I haven't been able to shake duplicate SA's. I've checked all the obvious stuff - making sure configurations match on both ends - and yet they persist. I've tried preferring older SA's, not preferring older SA's, turning on debug mode, etc - all in vain. Instead of toying around with the settings further, I would rather like to know what causes duplicate SA's so that I might have better insight into have to fix them.

Also, I would like to know if anyone has a fool-proof way to reset a particular IPSec SA (and corresponding SPD's) in pfSense. Just disabling/enabling the tunnel doesn't always work for me. I am using the latest version of pfSense on both ends (2.0.3)

Edit: Even though I'm asking this in the context of pfSense, I've observed this issue with Cisco ASA as well - even when one of the endpoints is a dynamic responder.

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Hi. Will you please include a sample of thoe duplicate SAs and SPDs? –  skarap Jun 11 '13 at 4:42
    
Sure... can you clarify your question? What do you need to see? –  tacos_tacos_tacos Jun 11 '13 at 4:47

1 Answer 1

I've upgraded to pfSense 2.1 RC0 and haven't looked back. Whatever was causing the issue (which has existed in both v1 and as late as v2.0.3) is no longer a problem. Though this doesn't really answer my question.

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