[strongSwan] IKE_SA/CHILD_SA instance

Martin Willi martin at strongswan.org
Thu Nov 8 09:18:46 CET 2012

Hi Jordan,

> I appreciate if any one could explain to me whether IKE_SA connection
> instance # is unique within the entire IKE_SA list?

Yes, they are, except for rekeyings. Each new IKE_SA gets an incremented
unique identifier, but a rekeyed IKE_SA that replaces an old IKE_SA
reuses the identifier of the replaced IKE_SA.

> I also have the same question for CHILD_SA. Is the instance ID unique
> with in the entire IPsec SA list?

Yes, but the same about rekeyings applies.


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