Setting a Static Ip on Ubuntu

Question

I'm struggling with setting my static ip, nothing seems to work.

When I enter my interfaces, it says (by default):

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

And that's okay, so, now I just want to assign a static ip, and I am using the wlan0 device in order to do so, as eth0 is unavailable. I try to add in below, for example:

auto wlan0
iface wlan0 inet static
 address 192.168.0.87/24
 netmask 255.255.255.0
 network 192.168.0.0
 broadcast 192.168.0.255
 gateway 192.168.0.1
 dns-nameservers 192.168.0.1, 192.168.0.87/24, 8.8.8.8
 wpa-ssid 'user'
 wpa-psk 'password' # I also tried it with hex value without quotation marks 

For sure, I know that my gateway is like that, all of it comes from the interface settings under nmcli dev list iface wlan0, but then it does not work. When I reboot the system, despite my network manager is properly disabled, the connections do not work, it just freezes and times out every time.

What could possibly wrong here?

Solution 1

Test this:

Open a terminal.

Run it:

sudo -i
nano /etc/network/interfaces

Add the following lines for you wifi lan adaptor.

----------------------------------------------
# The wifi network interface
auto wlan0
iface wlan0 inet static
    address 192.168.0.87
    netmask 255.255.255.0
    network 192.168.0.0
    broadcast 192.168.0.255
    gateway 192.168.0.1
    dns-nameservers 192.168.0.1, 8.8.8.8
    wpa-ssid <Your wifi network SSID>
    wpa-psk <Your hex encoded wifi WPA password>
-----------------------------------------------

Control + O, save file. Control + X, close nano.

Solution 2

Using the Network Manager GUI did the trick for me on Xubuntu 16.04:

Edit the wifi connection, and on IPv4 tab, enter:

• Method: Manual
• Address: xxx.xxx.xxx.xxx (your static address,in this case: 192.168.1.128)
• Netmask: 24
• Gateway: xxx.xxx.xxx.xxx (your gateway address,in this case: 192.168.1.1)
• DNS Server: xxx.xxx.xxx.xxx (your gateway address,in this case: 192.168.1.1)

---

Here's an example screenshot:

Solution 3

To setting up a static IP in Ubuntu the proper way is:

Disable the graphical management of your network connection in /etc/NetworkManager/NetworkManager.conf Gather the information for the static IP (interface, IP to be used, default gateway, subnet, DNS) Modify /etc/network/interfaces to include the information above. Restart networking and network-manager services.

Comments

[Jetson Earth]

Address needs to be a single address, not a range. Leave out the /24, also applies to dns

[steeldriver]

Unless this is server (no GUI) you should consider setting your interface via the network-manager nm-applet GUI instead of modifying the /etc/network/interfaces file.

[Maciej Sitko]

The fault was ultimately the matter or removing quotation marks from the username and putting a value in a hex way. Anyway, I took notes off from your hints and I'll improve my game. Thanks.

[arsaKasra]

"These instructions assume you are using a wired ethernet port to set a static IP on..."

[Kaz Wolfe]

Hello and welcome to Ask Ubuntu! While this is a good first answer, it can still be improved, with, say, a screenshot. If you feel like this is a good idea, please feel free to edit it into your answer. Otherwise, I'd recommend you read our tour and How to Answer page in order to get a better idea of how this site works, and how to better keep providing awesome content!

[ben432rew]

how do you find your static and gateway address?

[smac89]

@ben432rew gateway is the ip of your router, and static is the address you chose (should be done through router first)