---
title: MBUF_CSUM_REQ_UDPIPV6
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1644524-anonymous/mbuf_csum_req_udpipv6
---

# MBUF_CSUM_REQ_UDPIPV6

## Declaration

```occ
MBUF_CSUM_REQ_UDPIPV6 = 0x0040
```

## Discussion

Discussion Indicates the UDP checksum for IPv6 has not been calculated yet.