Hi all

Is NAT-T only applicable for ESP? Unlike ESP, AH authenticates original IP
header and New IP header in transport and tunnel mode respectively. Hence
even with NAT-T, IPSec with AH will fail.



Figure 3 Transport Mode—IPsec Packet Before and After ESP Encapsulation



Figure 4 Tunnel Mode—IPsec Packet Before and After ESP Encapsulation



With regards
Kings
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