> Source: [sk170393](https://support.checkpoint.com/results/sk/sk170393)

# sk170393 - IKEv2 fails on Spark Firewall with the message "IKE failure: Informational exchange: Exchange failed: timeout reached" in logs

| Property | Value |
|----------|-------|
| Solution ID | sk170393 |
| Date Created | 2020-11-09 |
| Last Modified | 2022-07-13 |
| Technical Level | General |
| Products | Spark Firewall (Locally Managed) |
| Versions | R81.10.X |
| Platform | 1570R, 1500, 1600, 1800, 910 |

## Symptoms

- * IKEv2 fails to connect in Quantum Spark (SMB) appliances.

* Logs show this error: "`IKE failure: Informational exchange: Exchange failed: timeout reached.`"

* IKE debugs show, in Authentication, Message 1:

  ```
  the Embedded GAIA device uses an IP address in IDi and not the defined global identifier.
  ```

  <br />

## Solution

To use the defined identifiers for IKEv2, you must select the **Advanced** option . If you do not select the **Advanced** option, the default behavior is to use the IP address. You must select the **Advanced** option even if the peer is not a Check Point Gateway.   

![](https://sc1.checkpoint.com/sc//SolutionsStatics/NEW_SK_NOID1604926814221/identifier202011090816181.png)

**Note** - This feature is not supported in centrally managed appliances.

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