# otIp4Address Struct Reference

# otIp4Address


`#include <openthread/nat64.h>`

Represents an IPv4 address.

## Summary

| ### Public attributes ||
|---|---|
| `https://openthread.io/reference/struct/ot-ip4-address#structot_ip4_address_1abe92287e593e2b9133a7e69deecfb537` | `union https://openthread.io/reference/union/ot-ip4-address/o-t-t-o-o-l-p-a-c-k-e-d-f-i-e-l-d` |

| ### Unions ||
|---|---|
| [otIp4Address::OT_TOOL_PACKED_FIELD](https://openthread.io/reference/union/ot-ip4-address/o-t-t-o-o-l-p-a-c-k-e-d-f-i-e-l-d) |   |

## Public attributes

### mFields

```
union otIp4Address::OT_TOOL_PACKED_FIELD otIp4Address::mFields
```

## Resources

OpenThread API Reference topics originate from the source code, available
on [GitHub](https://github.com/openthread/openthread/tree/main/include/openthread).
For more information, or to contribute to our documentation, refer to
[Resources](https://openthread.io/resources).