Static IP Address for Raspbian: Difference between revisions

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= Static IP Address =
= Debian 12 =
To create a static IP address for Raspbian.
 
== Set IP ==
Find the interface name.
 
<pre>nmcli c show</pre>
 
Configure IP settings.
<pre>
nmcli con mod "Wired connection 1" ipv4.addresses 10.13.13.235/24 ipv4.method manual
nmcli con mod "Wired connection 1" ipv4.gateway 10.13.13.254
nmcli con mod "Wired connection 1" ipv4.dns "10.13.13.240"
</pre>
 
 
For mutiple IP or DNS settings.
<pre>
nmcli con mod "Wired connection 1" ipv4.addresses 10.13.13.235/24, 192.168.1.235/24 ipv4.method manual
nmcli con mod "Wired connection 1" ipv4.dns "8.8.8.8, 8.8.4.4"
</pre>
 
== Reset interface ==
Reset or reboot.
<pre>nmcli con down "Wired connection 1" && nmcli con up "Wired connection 1"</pre>
 
== Show Settings ==
<pre>nmcli -p connection show "Wired connection 1"</pre>
 
</pre>
 
 
= Debian 11 =
 
== interfaces ==
make sure the interfaces file has not been modified.
<pre>
<pre>
vi /etc/network/interfaces
vi /etc/network/interfaces
</pre>
The default settings are:
<pre>
# interfaces(5) file used by ifup(8) and ifdown(8)
# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
</pre>
</pre>


Change the line
== dhcpcd.conf ==
<pre>
<pre>
iface eth0 inet dhcp
vi /etc/dhcpcd.conf
</pre>
</pre>
to
Append the following.
The entry of static will stop the server looking for an IP address from DHCP.
 
<pre>
<pre>
iface eth0 inet static
interface eth0
static ip_address=192.168.13.200/24
static routers=192.168.13.1
static domain_name_servers=8.8.8.8 8.8.4.4
static domain_search=mydomain.com ap.mydomain.com
</pre>
</pre>


and add the following lines immediately after the line above otherwise adding the lines to the end of the file will assign the information to the wireless network wlan0.
== Alias ==


=== Temporary ===
To create a temporary alias rather than a permanent one you can issue the following command from the CLI.
<pre>
<pre>
address 192.168.1.1
ifconfig eth0:0 192.168.22.1/24
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.254
</pre>
</pre>


== Add an IP Alias ==
== IPv6 ==
The domain names servers can have a mix of IPv4 and IPv6 servers.
 
<pre>
<pre>
iface eth0:0 inet static
vi /etc/dhcpcd.conf
address 192.168.22.1
netmask 255.255.255.0
network 192.168.22.0
broadcast 192.168.22.255
</pre>
</pre>


= Config Example =
Here is an example of my config file.
<pre>
<pre>
auto lo
static ip6_address=2321:3fa4:4f7a:d100::1234/64
iface lo inet loopback
static domain_name_servers=2001:4860:4860::8888 2001:4860:4860::8844
</pre>


iface eth0 inet static
== VLAN ==
address 192.168.13.252
netmask 255.255.255.0
network 192.168.13.0
broadcast 192.168.13.255
gateway 192.168.13.254


iface eth0:0 inet static
=== Load 8021q Module ===
address 192.168.22.1
<pre>
netmask 255.255.255.0
vi /etc/modules
network 192.168.22.0
</pre>
broadcast 192.168.22.255
 
Add the line
<pre>
8021q
</pre>
 
=== Create Interface ===
Define a VLAN for a specific interface.
 
<pre>
vi /etc/network/interfaces
</pre>


allow-hotplug wlan0
<pre>
iface wlan0 inet manual
# VLAN 101 Interface
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
auto eth0.101
iface default inet dhcp
iface eth0.101 inet manual
    vlan-raw-device eth0
</pre>
 
=== Assign IP Address ===
Set a static IP for new interface
<pre>
vi /etc/dhcpcd.conf
</pre>
 
<pre>
# Static IP configuration for VLan.101
interface eth0.101
static ip_address=192.168.1.101/24
</pre>
 
== Static Route ==
<pre>
vi /lib/dhcpcd/dhcpcd-hooks/40-routes
</pre>
 
This will add a static route via interface eth0.11 which is on Vlan.11.  you could just specify eth0.
 
<pre>
ip route add 192.168.0.0/16 via 192.168.99.254 dev eth0.11 proto static
</pre>
</pre>


[[Category : Raspbian]]
[[Category : Raspbian]]

Latest revision as of 05:53, 4 November 2023

Debian 12

Set IP

Find the interface name.

nmcli c show

Configure IP settings.

nmcli con mod "Wired connection 1" ipv4.addresses 10.13.13.235/24 ipv4.method manual
nmcli con mod "Wired connection 1" ipv4.gateway 10.13.13.254
nmcli con mod "Wired connection 1" ipv4.dns "10.13.13.240"


For mutiple IP or DNS settings.

nmcli con mod "Wired connection 1" ipv4.addresses 10.13.13.235/24, 192.168.1.235/24 ipv4.method manual
nmcli con mod "Wired connection 1" ipv4.dns "8.8.8.8, 8.8.4.4"

Reset interface

Reset or reboot.

nmcli con down "Wired connection 1" && nmcli con up "Wired connection 1"

Show Settings

nmcli -p connection show "Wired connection 1"


Debian 11

interfaces

make sure the interfaces file has not been modified.

vi /etc/network/interfaces

The default settings are:

# interfaces(5) file used by ifup(8) and ifdown(8)

# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'

# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

dhcpcd.conf

vi /etc/dhcpcd.conf

Append the following. The entry of static will stop the server looking for an IP address from DHCP.

interface eth0
static ip_address=192.168.13.200/24
static routers=192.168.13.1
static domain_name_servers=8.8.8.8 8.8.4.4
static domain_search=mydomain.com ap.mydomain.com

Alias

Temporary

To create a temporary alias rather than a permanent one you can issue the following command from the CLI.

ifconfig eth0:0 192.168.22.1/24

IPv6

The domain names servers can have a mix of IPv4 and IPv6 servers.

vi /etc/dhcpcd.conf
static ip6_address=2321:3fa4:4f7a:d100::1234/64
static domain_name_servers=2001:4860:4860::8888 2001:4860:4860::8844

VLAN

Load 8021q Module

vi /etc/modules

Add the line

8021q

Create Interface

Define a VLAN for a specific interface.

vi /etc/network/interfaces
# VLAN 101 Interface
auto eth0.101
iface eth0.101 inet manual
    vlan-raw-device eth0

Assign IP Address

Set a static IP for new interface

vi /etc/dhcpcd.conf
# Static IP configuration for VLan.101
interface eth0.101
static ip_address=192.168.1.101/24

Static Route

vi /lib/dhcpcd/dhcpcd-hooks/40-routes

This will add a static route via interface eth0.11 which is on Vlan.11. you could just specify eth0.

ip route add 192.168.0.0/16 via 192.168.99.254 dev eth0.11 proto static