Network configuration
IPv6 setup
Upon request we provide you with a /48 IPv6 prefix for all our Root Dedicated Server and Root CloudVM products. You will receive one prefix per server and be able to choose the preferred addresses out of this prefix.
Autoconfiguration neither by Stateless address autoconfiguration nor by DHCPv6 is supported in our network. Please configure the desired IPv6 address(es) manually.
The IPv6 gateway has the address of fe80::1 on each prefix. This address out of the link-local prefix allows for a setup where no address out of your prefix needs to be assigned to the network infrastructure.
Netplan
Open /etc/netplan/55-interfaces.yaml in your preferred editor:
vi /etc/netplan/55-interfaces.yaml
Extend your ethernet definition with IPv6:
network:
version: 2
ethernets:
ens3:
dhcp4: false
dhcp6: false
accept-ra: false
match:
macaddress: 1f:2f:3f:4f:5f:6f
addresses:
- 198.51.100.10/24
- 2001:0DB8:9999:9999::1/64
routes:
- to: 0.0.0.0/0
via: 198.51.100.1
- to: "::/0"
via: fe80::1
Before applying the Netplan configuration, it’s important to test it to ensure there are no syntax errors or network issues:
netplan try
If the test was successful and the configuration hasn't been applied yet using netplan try, please apply it now:
netplan apply
And verify with:
ip -6 addr show ens3
ifupdown (legacy)
Please use Netplan if possible. This is written only for the sake of completeness!
Open /etc/network/interfaces in your preferred editor:
vi /etc/network/interfaces
Add an IPv6 configuration like this (adjust the interface name according to your system!):
iface ens3 inet6 static
address 2001:0DB8:9999:9999::1
netmask 64
gateway fe80::1
And restart your networking:
systemctl restart networking
Configure Additional IP Address(es)
Prerequisites
- Subscription: Additional IPv4 Address
Netplan
Open /etc/netplan/55-interfaces.yaml in the editor of your choice:
vi /etc/netplan/55-interfaces.yaml
And add the additional IP address under addresses:
bonds:
bond0:
addresses:
- 198.51.100.10/24
- 198.51.100.11/24
A complete Netplan configuration could look like this:
---
network:
version: 2
renderer: networkd
bonds:
bond0:
interfaces:
- ens3
- ens4
dhcp4: false
dhcp6: false
accept-ra: false
addresses:
- 198.51.100.10/24
- 198.51.100.11/24
macaddress: 1f:2f:3f:4f:5f:6f
routes:
- to: 0.0.0.0/0
via: 198.51.100.1
parameters:
mode: 802.3ad
transmit-hash-policy: layer3+4
lacp-rate: fast
mii-monitor-interval: 100
ethernets:
ens3:
dhcp4: false
dhcp6: false
accept-ra: false
ens4:
dhcp4: false
dhcp6: false
accept-ra: false
Before applying the Netplan configuration, it’s important to test it to ensure there are no syntax errors or network issues:
netplan try
If the test was successful and the configuration hasn't been applied yet using netplan try, please apply it now:
netplan apply
And verify it with:
ip -4 addr show bond0
For more information, see: man netplan
Ifupdown (legacy)
Please use Netplan if possible. This is provided for completeness only!
Open /etc/network/interfaces in the editor of your choice:
vi /etc/network/interfaces
Add the additional IP address(es):
auto bond0
iface bond0 inet static
hwaddress ether a4:bf:01:25:ad:d3
address 198.51.100.10
netmask 255.255.255.0
gateway 198.51.100.1
bond_slaves eno1 eno2
bond_primary eno1
bond_mode 4
bond_miimon 100
bond_xmit_hash_policy layer3+4
bond_lacp_rate 1
# Add secondary IP address
up ip addr add 198.51.100.11/24 dev bond0 || true
And restart the network:
systemctl restart networking
For more information, see: man interfaces
VLAN / Port for internal network
If you have multiple root servers in the same room and want to exchange private/sensitive traffic between them, VLAN is your option and a good alternative to a VPN.
Prerequisites
- Two or more Root Dedicated Servers
- Subscription: Port for internal networking
bond0network interface
Ensure the following package is installed:
apt install vlan
And check if the bond0 network interface exists:
ip addr show bond0
Attention: Not all systems have bondig enabled!
In case you're missing a bond0 interface, please contact our support!
If everything is prepared, proceed with Netplan (recommended) or ifupdown (legacy).
Netplan
Open /etc/netplan/55-interfaces.yaml in your preferred editor:
vi /etc/netplan/55-interfaces.yaml
Add a VLAN definition like this:
vlans:
vlan<VLAN-ID>:
id: <VLAN-ID>
link: bond0
addresses:
- 192.0.2.10/24
A complete Netplan configuration could look like this:
---
network:
version: 2
renderer: networkd
bonds:
bond0:
interfaces:
- ens3
- ens4
dhcp4: false
dhcp6: false
accept-ra: false
addresses:
- 198.51.100.10/24
macaddress: 1f:2f:3f:4f:5f:6f
routes:
- to: 0.0.0.0/0
via: 198.51.100.1
parameters:
mode: 802.3ad
transmit-hash-policy: layer3+4
lacp-rate: fast
mii-monitor-interval: 100
ethernets:
ens3:
dhcp4: false
dhcp6: false
accept-ra: false
ens4:
dhcp4: false
dhcp6: false
accept-ra: false
vlans: # VLAN configuration starts here!
vlan<VLAN-ID>:
id: <VLAN-ID>
link: bond0
addresses:
- 192.0.2.10/24
Before applying the Netplan configuration, it’s important to test it to ensure there are no syntax errors or network issues:
netplan try
If the test was successful and the configuration hasn't been applied yet using netplan try, please apply it now:
netplan apply
And verify with:
ip addr show vlan<VLAN-ID>
For further information, please also have a look at: man netplan
ifupdown (legacy)
Please use Netplan if possible. This is written only for the sake of completeness!
Open /etc/network/interfaces in your preferred editor:
vi /etc/network/interfaces
Add a VLAN configuration like this:
# interface vlan<VLAN-ID>
auto vlan<VLAN-ID>
iface vlan<VLAN-ID> inet static
vlan-raw-device bond0
address <IP-Address>
netmask <NETMASK>
And restart your networking:
systemctl restart networking
For further information, please also have a look at: man vlan-interfaces