---
title: arphdr
framework: Kernel
role: symbol
platforms: [macOS 10.6+]
path: kernel/arphdr
---

# arphdr

## Declaration

```occ
struct arphdr {
    ...
};
```

## Topics

### Instance Properties

- [ar_hln](kernel/arphdr/1543825-ar_hln.md)
- [ar_hrd](kernel/arphdr/1543785-ar_hrd.md)
- [ar_op](kernel/arphdr/1543814-ar_op.md)
- [ar_pln](kernel/arphdr/1543804-ar_pln.md)
- [ar_pro](kernel/arphdr/1543818-ar_pro.md)