mirror of
https://github.com/openshift/openshift-docs.git
synced 2026-02-05 12:46:18 +01:00
72 lines
3.0 KiB
Plaintext
72 lines
3.0 KiB
Plaintext
|
// Module included in the following assemblies:
|
||
|
|
//
|
||
|
|
// * installing/installing_bare_metal/upi/installing-bare-metal.adoc
|
||
|
|
// * installing/installing_bare_metal/upi/installing-restricted-networks-bare-metal.adoc
|
||
|
|
// * installing/installing_bare_metal/upi/installing-bare-metal-network-customizations.adoc
|
||
|
|
// * installing/installing_platform_agnostic/installing-platform-agnostic.adoc
|
||
|
|
// * installing/installing_ibm_power/installing-ibm-power.adoc
|
||
|
|
// * installing/installing_ibm_power/installing-restricted-networks-ibm-power.adoc
|
||
|
|
// * installing/installing_ibm_z/installing-ibm-z.adoc
|
||
|
|
// * installing/installing_ibm_z/installing-ibm-z-kvm.adoc
|
||
|
|
// * installing/installing_ibm_z/installing-ibm-z-lpar.adoc
|
||
|
|
// * installing/installing_ibm_z/installing-restricted-networks-ibm-z.adoc
|
||
|
|
// * installing/installing_ibm_z/installing-restricted-networks-ibm-z-kvm.adoc
|
||
|
|
// * installing/installing_ibm_z/installing-restricted-networks-ibm-z-lpar.adoc
|
||
|
|
// * installing/installing_ibm_power/installing-ibm-power.adoc
|
||
|
|
// * installing/installing_ibm_power/installing-restricted-networks-ibm-power.adoc
|
||
|
|
|
||
|
|
:_mod-docs-content-type: PROCEDURE
|
||
|
|
[id="configuring-dhcp-or-static-ip-addresses_{context}"]
|
||
|
|
= Configuring DHCP or static IP addresses
|
||
|
|
|
||
|
|
[role="_abstract"]
|
||
|
|
You can configure an IP address by using either DHCP or an individual static IP address. If you set a static IP, you must then identify the DNS server IP address on each node.
|
||
|
|
|
||
|
|
The configuration examples in the procedure, update the IP addresses for the following components:
|
||
|
|
|
||
|
|
* The node's IP address to `10.10.10.2`
|
||
|
|
* The gateway address to `10.10.10.254`
|
||
|
|
* The netmask to `255.255.255.0`
|
||
|
|
* The hostname to `core0.example.com`
|
||
|
|
* The DNS server address to `4.4.4.41`
|
||
|
|
* The auto-configuration value to `none`. No auto-configuration is required when IP networking is configured statically.
|
||
|
|
|
||
|
|
.Procedure
|
||
|
|
|
||
|
|
. Enter a command like the following command to configure a static IP address:
|
||
|
|
+
|
||
|
|
[source,terminal]
|
||
|
|
----
|
||
|
|
ip=10.10.10.2::10.10.10.254:255.255.255.0:core0.example.com:enp1s0:none
|
||
|
|
nameserver=4.4.4.41
|
||
|
|
----
|
||
|
|
|
||
|
|
. Enter a command like the following command to configure a DHCP IP address:
|
||
|
|
+
|
||
|
|
[source,terminal]
|
||
|
|
----
|
||
|
|
ip=enp1s0:dhcp
|
||
|
|
----
|
||
|
|
+
|
||
|
|
[NOTE]
|
||
|
|
====
|
||
|
|
When you use DHCP to configure IP addressing for the {op-system} machines, the machines also obtain the DNS server information through DHCP. For DHCP-based deployments, you can define the DNS server address that is used by the {op-system} nodes through your DHCP server configuration.
|
||
|
|
====
|
||
|
|
|
||
|
|
. If two or more network interfaces and only one interface exists, disable DHCP on a single interface. In the example, the `enp1s0` interface has a static networking configuration and DHCP is disabled for `enp2s0`, which is not used:
|
||
|
|
+
|
||
|
|
[source,terminal]
|
||
|
|
----
|
||
|
|
ip=10.10.10.2::10.10.10.254:255.255.255.0:core0.example.com:enp1s0:none
|
||
|
|
ip=::::core0.example.com:enp2s0:none
|
||
|
|
----
|
||
|
|
|
||
|
|
. If you need to combine DHCP and static IP configurations on systems with multiple network interfaces, run the following example command:
|
||
|
|
+
|
||
|
|
[source,terminal]
|
||
|
|
----
|
||
|
|
ip=enp1s0:dhcp
|
||
|
|
ip=10.10.10.2::10.10.10.254:255.255.255.0:core0.example.com:enp2s0:none
|
||
|
|
----
|
||
|
|
|