Hello,

I noticed that some packets were lost during IKEv2 negotiation with VPP. After 
investigation it seems that it is related to ARP resolution.

When the ARP cache is empty and a packetX needs to be sent, VPP will send an 
ARP request (which is right), but the packetX won't be sent afterwards. A 
mitigation that I found is to fill the ARP cache manually, but it is not very 
convenient.

Thus I was wondering  : is it the expected behavior or should it be patched ?

Best regards.

Berenger
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