---
title: Certificate Authentication with IKE and ESP
slug: isac/admin-guide/android/certificate-authentication-with-ike-and-esp
docTags: 
createdAt: 2026-07-23T05:01:25.145Z
---

To implement certificate authentication with IKEv2 and ESP on Android, ensure the following requirements are met:

Client Certificate Installation: Install the client certificate on the Android device. This certificate is essential for EAP-TLS authentication.

CA Certificate Configuration: The CA certificate that issued the client certificate must also be installed on the device. This is crucial for establishing trust during the authentication process.

For more information, see [Using IKEv2 Security](https://help.ivanti.com/ps/help/en_US/ICS/22.x/22.7R2/ag/network_n_host_admin.htm#network_and_host_administration_1399867268_681647).