Chapter 11. Network Configuration
Use this screen to customize the network settings of your Fedora
system.
Manual network configuration of a Fedora system is often not
required. Many networks have a
DHCP (Dynamic Host Configuration
Protocol) service that automatically supplies connected systems with
configuration data. By default, Fedora activates all network
interfaces on your computer and configures them to use DHCP.
Fedora contains complete support for both
IPv4 and IPv6. By
default, Fedora configures network interfaces on your computer for
both IPv4 and IPv6 support, and to use DHCP over both IPv4 and IPv6.
For more information about IPv6, refer to https://en.wikipedia.org/wiki/IPv6.
Many home Internet routers and firewalls do not include
support for IPv6. The default settings will not harm your system or
router in any way. However, the speed of some services improves
drastically if you disable IPv6 on any interface on a network that
does not use IPv6.
![[Tip]](./stylesheet-images/tip.png)
|
IPv6 and Boot Options |
|
You can disable IPv6 support in the installation program using
the boot option noipv6. The installation program
does not configure network interfaces for IPv6 if you use this
option. For more information on boot options, refer to Appendix A, Boot Options
.
|
Fedora displays a list of network interfaces detected on your
computer. Each interface must have a unique IP
address on the network to which it is attached. The
interface may receive this address from the network DHCP service.
Specify whether an interface should be automatically activated at
boot time with the
Active on Boot
check box
for that device. You may manually activate a network interface at
any time after the system has booted.
![[Note]](./stylesheet-images/note.png)
|
Modem Configuration |
|
The
Network Configuration
screen does not
list
modems. Configure these devices after installation
with the
Network
utility. The
settings for your modem are specific to your particular Internet
Service Provider (ISP).
|
11.1.1. Configuring IPv4 and IPv6 Support
To add or remove IPv4 or IPv6 support, highlight the
interface on the
Network Device
list and
select
Edit
. Fedora displays the
Edit Interface
dialog. If the interface is
not configured for IPv4 or IPv6 protocol, that entry is marked
Disabled
.
To change the selection, select or deselect the appropriate
checkbox. If necessary, change the network address
configuration for the interface.
|
|
DHCP and Servers |
|
If this computer system is a server, avoid DHCP if possible,
and manually configure networking. Manual network
configuration allows your server to join the local network
even if the DHCP provider is down.
|
To assign an unchanging, or static, IP
address to your system, highlight the interface on the
Network Device
list and select
Edit
. Fedora then displays the
Edit Interface
dialog.
Deselect
the
Configure using
DHCP
check box, so that it is empty. Enter the
IP Address
and the appropriate
Netmask
for the interface, then select
OK
.
If you disable DHCP, automatic configuration of the
Hostname
is also disabled, and the
Miscellaneous Settings
options are enabled.
Refer to Section 11.3, “Miscellaneous Settings” for more
information.
If IPv6 is enabled, the installation program defaults to
using
Automatic neighbor discovery
. If you
want to change the default, select either
DHCPv6
for IPv6-compliant dynamic IP
addressing, or
Manual configuration
to
enter IP information manually.
To assign a static IPv6 address, enter the
IP
Address
and the appropriate
Prefix
for the interface, then select
OK
.
