---
title: MBUF_LOOP
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1644527-anonymous/mbuf_loop
---

# MBUF_LOOP

## Declaration

```occ
MBUF_LOOP = 0x0040
```

## Discussion

Discussion Indicates this packet is looped back.