---
title: rt_msghdr2
framework: Kernel
role: symbol
platforms: [macOS 10.6+]
path: kernel/rt_msghdr2
---

# rt_msghdr2

## Declaration

```occ
struct rt_msghdr2 {
    ...
};
```

## Topics

### Instance Properties

- [rtm_addrs](kernel/rt_msghdr2/1574665-rtm_addrs.md)
- [rtm_flags](kernel/rt_msghdr2/1574639-rtm_flags.md)
- [rtm_index](kernel/rt_msghdr2/1574588-rtm_index.md)
- [rtm_inits](kernel/rt_msghdr2/1574651-rtm_inits.md)
- [rtm_msglen](kernel/rt_msghdr2/1574616-rtm_msglen.md)
- [rtm_parentflags](kernel/rt_msghdr2/1574655-rtm_parentflags.md)
- [rtm_refcnt](kernel/rt_msghdr2/1574656-rtm_refcnt.md)
- [rtm_reserved](kernel/rt_msghdr2/1574666-rtm_reserved.md)
- [rtm_rmx](kernel/rt_msghdr2/1574641-rtm_rmx.md)
- [rtm_type](kernel/rt_msghdr2/1574598-rtm_type.md)
- [rtm_use](kernel/rt_msghdr2/1574664-rtm_use.md)
- [rtm_version](kernel/rt_msghdr2/1574609-rtm_version.md)