Hi Gagandeep,

There is an option(dec_ttl) in 'struct rte_security_ipsec_sa_options' to 
control this. Wouldn't that work?

http://code.dpdk.org/dpdk/latest/source/lib/security/rte_security.h#L166

Thanks,
Anoob

From: Gagandeep Singh <g.si...@nxp.com> 
Sent: Thursday, November 18, 2021 9:41 AM
To: Akhil Goyal <gak...@marvell.com>; dev@dpdk.org
Subject: [EXT] query regarding IPsec inner IP header TTL

External Email 
________________________________________
Hi,

Is there any option available in IPsec mode to decrement the inner IP header 
TTL field by security engine?

I believe in case of forwarding, inner IP header TTL should be decrement but 
not in case of packet termination. So looking for an option that application 
can pass to driver to perform TTL decrement.

Thanks,
Gagan

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