---
title: "minimumMTU(_:)"
framework: network
role: symbol
role_heading: Instance Method
path: "network/ip/minimummtu(_:)"
---

# minimumMTU(_:)

Configure IP to use the minimum MTU value.

## Declaration

```swift
func minimumMTU(_ useMinimumMTU: Bool) -> IP
```

## Parameters

- `useMinimumMTU`: True to use the minimum MTU value, false otherwise.

## Discussion

Discussion The minimum MTU value is 1280 bytes for IPv6 (IPV6_USE_MIN_MTU). This value has no effect for IPv4.