FortiOS 4.3.6 to 5.2.7 Encypted Hash Values Migration

[hoandsons]

G'day All,

We are migrating from 4.3.6 to 5.2.7 hardware.

We have lost out plaintext IPSEC key values - but we have our encrypted hash values in 4.3.6.

Will our hash values work in 5.2.7? 

Thanks

[hoandsons]

Any help please?

[sw2090]

I suppose they unfortunately will not work. There were changes affecting the encryption with the newer FortiOS versions.

You thus might not loose them if you do an upgrade following the specified upgrade path.