> For the complete documentation index, see [llms.txt](https://srodevs.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://srodevs.gitbook.io/docs/packets/gateway/gateway_login_ibuv_challenge.md).

# GATEWAY\_LOGIN\_IBUV\_CHALLENGE

* Opcode `0x2322`
* Direction `S > C`

```csharp
1   byte    Image.Flags
2   ushort  Image.Remaining           //in bytes
2   ushort  Image.CompressedLength
2   ushort  Image.UncompressedLength
2   ushort  Image.Width               //200
2   ushort  Image.Height              //64
*   byte[]  Image.CompressedData
```