---
title: useConfigurationAttributeInternalIPSubnet
framework: networkextension
role: symbol
role_heading: Instance Property
path: networkextension/nevpnprotocolikev2/useconfigurationattributeinternalipsubnet
---

# useConfigurationAttributeInternalIPSubnet

A Boolean indicating whether or not the IKEv2 client should use the INTERNAL_IP4_SUBNET and/or INTERNAL_IP6_SUBNET attributes sent by the IKEv2 server.

## Declaration

```swift
var useConfigurationAttributeInternalIPSubnet: Bool { get set }
```

## Discussion

Discussion If this property is false, split tunnel configurations may still be communicated via Traffic Selectors during IKE negotiation. Some IKEv2 servers use the INTERNAL_IP4_SUBNET and INTERNAL_IP6_SUBNET protocol message attributes to communicate split tunnel routes to IKEv2 clients. The default value of this property is false.

## See Also

### Accessing other IKEv2 properties

- [deadPeerDetectionRate](networkextension/nevpnprotocolikev2/deadpeerdetectionrate.md)
- [NEVPNIKEv2DeadPeerDetectionRate](networkextension/nevpnikev2deadpeerdetectionrate.md)
- [disableMOBIKE](networkextension/nevpnprotocolikev2/disablemobike.md)
- [disableRedirect](networkextension/nevpnprotocolikev2/disableredirect.md)
- [enablePFS](networkextension/nevpnprotocolikev2/enablepfs.md)
- [enableRevocationCheck](networkextension/nevpnprotocolikev2/enablerevocationcheck.md)
- [strictRevocationCheck](networkextension/nevpnprotocolikev2/strictrevocationcheck.md)
- [mtu](networkextension/nevpnprotocolikev2/mtu.md)