I found a strange thing in our VPN concentrator 3000. Under IKe Proposal, I do not find if AH. Only ESP combination what I find. Any idea, how I would be able to activate that AH on my box?
No problem at all, you should push them to use ESP anyway (even in future) as AH does not offer encryption and is not NAT/PAT aware.
Its only useful for some special purposes now (I think IPV6 OSPF uses it for security purposes).
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