## prefix-delegation prefix-delegation — IPv6 prefix delegation settings |

## Properties

Table 68.

Key Name | Value Type | Default Value | Value Description
--- | --- | --- | ---
    subnet-id
    int64
    -1
| The subnet ID to use on the interface from the prefix delegation received via an upstream interface. Set to a value between 0 and 0xffffffff (2^32 - 1) to indicate a specific subnet ID; or set to -1 to automatically choose an available subnet ID.