# Ubuntu Steps For Manual Configuration. (With Netplan)
## Netplan commands
* ```sudo netplan generate```
* ```sudo netplan apply```
## Only DHCP
```
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
ethernets:
enp34s0:
dhcp4: yes
```
* Run netplan commands
* Run ```ip a```
### enp34s0 :
```
2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.14/24 brd 192.168.1.255 scope global dynamic noprefixroute enp34s0
valid_lft 86234sec preferred_lft 86234sec
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
Here ```192.168.1.14``` is assigned by the router
## Assigning static IP to enp34s0 adapter
```
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
ethernets:
enp34s0:
dhcp4: no
addresses: [192.168.1.19/24]
gateway4: 192.168.1.1
nameservers:
addresses: [8.8.8.8]
```
* Run netplan commands
* Run ```ip a```
### enp34s0 :
```
2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.19/24 brd 192.168.1.255 scope global noprefixroute enp34s0
valid_lft forever preferred_lft forever
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
Here I have assigned single static IP ```192.168.1.19``` to the adapter.
## Assigning Multiple Static IPS to enp34s0
```
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
ethernets:
enp34s0:
dhcp4: no
addresses: [192.168.1.19/24, 192.168.1.18/24]
gateway4: 192.168.1.1
nameservers:
addresses: [8.8.8.8]
```
* Run netplan commands
* Run ```ip a```
### enp34s0 :
```
2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.19/24 brd 192.168.1.255 scope global noprefixroute enp34s0
valid_lft forever preferred_lft forever
inet 192.168.1.18/24 brd 192.168.1.255 scope global secondary noprefixroute enp34s0
valid_lft forever preferred_lft forever
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
Here I have assigned ```192.168.1.18``` and ```192.168.1.19``` to the adapter.
## Assigning Multiple Static IPS to enp34s0 with DHCP enabled
```
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
ethernets:
enp34s0:
dhcp4: yes
addresses: [192.168.1.19/24, 192.168.1.18/24]
gateway4: 192.168.1.1
nameservers:
addresses: [8.8.8.8]
```
* Run netplan commands
* Run ```ip a```
### enp34s0 :
```
2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.14/24 brd 192.168.1.255 scope global dynamic noprefixroute enp34s0
valid_lft 86398sec preferred_lft 86398sec
inet 192.168.1.19/24 brd 192.168.1.255 scope global secondary noprefixroute enp34s0
valid_lft forever preferred_lft forever
inet 192.168.1.18/24 brd 192.168.1.255 scope global secondary noprefixroute enp34s0
valid_lft forever preferred_lft forever
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
Here I have assigned ```192.168.1.18``` and ```192.168.1.19``` to the adapter and the router assigned ```192.168.1.14```
## Bridge Network
```
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
ethernets:
enp34s0:
dhcp4: no
bridges:
br0:
interfaces: [enp34s0]
addresses: [192.168.1.26/24]
gateway4: 192.168.1.1
mtu: 1500
nameservers:
addresses: [8.8.8.8]
parameters:
stp: true
forward-delay: 4
dhcp4: no
dhcp6: no
```
* Run netplan commands
* Run ```ip a```
### enp34s0 :
```
2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
```
### br0 :
```
6: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.26/24 brd 192.168.1.255 scope global noprefixroute br0
valid_lft forever preferred_lft forever
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
## Re-assigning to adapter enp34s0 :
```
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
ethernets:
enp34s0:
dhcp4: no
addresses: [192.168.1.19/24]
gateway4: 192.168.1.1
nameservers:
addresses: [8.8.8.8]
```
* Run netplan commands
* Run ```ip a```
### enp34s0 :
```
2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.19/24 brd 192.168.1.255 scope global noprefixroute enp34s0
valid_lft forever preferred_lft forever
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
### br0 :
```
6: br0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.26/24 brd 192.168.1.255 scope global noprefixroute br0
valid_lft forever preferred_lft forever
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
Although this configuration assigned ```192.168.1.19``` IP to enp34s0 but there was no internet connection.
Previously, I solved this by running ```sudo ip link delete br0 type bridge``` and then the netplan commands.
However, If I run ```sudo ip link set dev br0 down``` and then run the netplan commands again. The internet connection comes back.
### enp34s0 :
```
2: enp34s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 2c:f0:5d:79:00:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.19/24 brd 192.168.1.255 scope global noprefixroute enp34s0
valid_lft forever preferred_lft forever
inet6 fe80::2ef0:5dff:fe79:39/64 scope link
valid_lft forever preferred_lft forever
```
### br0 :
```
6: br0: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.26/24 brd 192.168.1.255 scope global noprefixroute br0
valid_lft forever preferred_lft forever
```
However, the IP is still active. Here' the router's devices map :
But If I delete br0, the ip is free.
Sign in with Wallet
Connect another wallet