3.13.5.2 Xbox IKEv2 Negotiation Vendor ID
The "Xbox IKEv2 Negotiation" vendor ID can be looked up by the responder and stored in the XBox IKEv2 Negotiation Type ADM element discussed in section 3.13.1. For the associated negotiation type, the host MUST increment the number of ongoing IKE negotiations. If the number of such IKE negotiations exceeds the configured limit for the given Xbox secure connection, the negotiation is failed.