A network device may receive a first private certificate and a second private certificate, and may provision the network device with the first private certificate and the second private certificate. The network device may receive, from a first UE, an IKE SA INIT request with a first payload that includes a priority indicator, and may decrypt the encrypted first IKE SA INIT request with the first private certificate. The network device may receive, from a second UE, an encrypted second IKE SA INIT request with a second payload that does not include the priority indicator, and may decrypt the encrypted second IKE SA INIT request with the second private certificate. The network device may detect congestion, and may prioritize traffic from the first UE over traffic from the second UE based on the congestion and based on the priority indicator.