When we face the message “OVH: An error occurred on adding an IPv6”, it shows that there was a problem when trying to add or set up an IPv6 address on the server or service hosted with OVHcloud. At Bobcares, we assist our customers with several queries on a daily basis as part of our Server Management Services.

Overview

1. Fixing “OVH: An error occurred on adding an IPv6”
2. Common Causes
3. Troubleshooting Tips

Fixing “OVH: An error occurred on adding an IPv6”

An issue occurred when trying to add or setup an IPv6 address on the server or service hosted by OVHcloud, as shown by the message “OVH: An error occurred on adding an IPv6”. There are a number of possible reasons why this error may happen. Let’s look into the details.

Common Causes

1. Incorrect Setup: The IPv6 address, prefix, or gateway details may be incorrect. Ensure that the details is correct and follows OVHcloud’s guidelines.

2. Missing Dependencies: Some services may require extra configs or enabling of IPv6 functionality before adding an address.

3. IP Address Limits: We may have reached the maximum number of IPv6 addresses that can be allocated to the account or server, causing the error when trying to add more.

4. Firewall Restrictions: The OVHcloud firewall settings may be blocking IPv6 traffic, preventing the addition of new IPv6 addresses. Check the firewall rules and ensure that IPv6 traffic is permitted.

5. Network Interface Issues: The network interface may not support IPv6, or it may not be properly setup to handle extra IPv6 addresses.

6. OVHcloud Network Problems: Sometimes, temporary network issues on OVHcloud’s end can lead to this error.

Troubleshooting Tips

1. Double-check the IPv6 address, prefix, and gateway settings for accuracy. Make sure they match the details provided by OVHcloud.

2. Log into the OVH control panel and verify that the server or service has available IPv6 addresses to allocate.

3. Ensure that the OVHcloud firewall is setup to allow IPv6 traffic on necessary ports.

4. Confirm whether there are any restrictions on the number of IPv6 addresses the service can have. This details should be available in the account’s service details.

5. Use network tools to check if the server’s network interface supports IPv6 and is setup correctly.

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Conclusion

To sum up, by addressing these potential causes, we can resolve the error and successfully add an IPv6 address to the OVHcloud service.