Hi Neale, I am testing data traffic b/w Strongswan and VPP but sometimes data traffic is dropped in *esp4-decrypt-tun *graph node. Sometimes it is dropped with "Integrity failure" while sometimes it is "Unsupported payload"
But if I delete the tunnel and re-establish IPSec SA, then it works fine. I have ensured the configuration w.r.t PSK, Proposals and TS is fine. Also, I confirmed that the adjacencies(routes) for the Strongswan are fine on the VPP side. Version I am using is pasted below. Could I be missing something? These are random issues. vpp# show version *vpp v20.05.1-2*~g44ff05906-dirty built by an-vijay_kumar on 56d1c81f572a at 2021-07-30T15:54:16 Regards.
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