# Set a static address part with IPv6 and NetworkManager


In `/etc/netplan/00-<interface>.yaml` configure a `ipv6-address-token` like this:
```bash
sudo nmcli con mod 'Common net' ipv6.addr-gen-mode eui64 
sudo nmcli con mod 'Common net' ipv6.token ::252
```
Then restart the interface if needed:
```bash
sudo nmcli con down 'Common net'; sudo nmcli con up 'Common net'
```