---
title: syncSIOCSIFMTU
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioethernetinterface/1585546-syncsiocsifmtu
---

# syncSIOCSIFMTU

## Declaration

```occ
int syncSIOCSIFMTU(IONetworkController *ctr, struct ifreq *ifr, bool);
```