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

# if_data

## Declaration

```occ
struct if_data {
    ...
};
```

## Topics

### Instance Properties

- [ifi_addrlen](kernel/if_data/1492556-ifi_addrlen.md)
- [ifi_baudrate](kernel/if_data/1492593-ifi_baudrate.md)
- [ifi_collisions](kernel/if_data/1492565-ifi_collisions.md)
- [ifi_hdrlen](kernel/if_data/1492551-ifi_hdrlen.md)
- [ifi_hwassist](kernel/if_data/1492560-ifi_hwassist.md)
- [ifi_ibytes](kernel/if_data/1492587-ifi_ibytes.md)
- [ifi_ierrors](kernel/if_data/1492563-ifi_ierrors.md)
- [ifi_imcasts](kernel/if_data/1492502-ifi_imcasts.md)
- [ifi_ipackets](kernel/if_data/1492519-ifi_ipackets.md)
- [ifi_iqdrops](kernel/if_data/1492513-ifi_iqdrops.md)
- [ifi_lastchange](kernel/if_data/1492572-ifi_lastchange.md)
- [ifi_metric](kernel/if_data/1492506-ifi_metric.md)
- [ifi_mtu](kernel/if_data/1492524-ifi_mtu.md)
- [ifi_noproto](kernel/if_data/1492476-ifi_noproto.md)
- [ifi_obytes](kernel/if_data/1492489-ifi_obytes.md)
- [ifi_oerrors](kernel/if_data/1492575-ifi_oerrors.md)
- [ifi_omcasts](kernel/if_data/1492557-ifi_omcasts.md)
- [ifi_opackets](kernel/if_data/1492591-ifi_opackets.md)
- [ifi_physical](kernel/if_data/1492504-ifi_physical.md)
- [ifi_recvquota](kernel/if_data/1492530-ifi_recvquota.md)
- [ifi_recvtiming](kernel/if_data/1492555-ifi_recvtiming.md)
- [ifi_reserved1](kernel/if_data/1492528-ifi_reserved1.md)
- [ifi_reserved2](kernel/if_data/1492517-ifi_reserved2.md)
- [ifi_type](kernel/if_data/1492607-ifi_type.md)
- [ifi_typelen](kernel/if_data/1492543-ifi_typelen.md)
- [ifi_unused1](kernel/if_data/1492474-ifi_unused1.md)
- [ifi_unused2](kernel/if_data/1492596-ifi_unused2.md)
- [ifi_xmitquota](kernel/if_data/1492480-ifi_xmitquota.md)
- [ifi_xmittiming](kernel/if_data/1492570-ifi_xmittiming.md)