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10.3.9.4. Configuring IPv4 Settings
Figure 10.17. Editing the IPv4 Settings Tab
The IPv4 Settings tab allows you to configure the method by which you connect to the Internet and enter IP address, route, and DNS information as required. The IPv4 Settings tab is available when you create and modify one of the following connection types: wired, wireless, mobile broadband, VPN or DSL.
If you are using DHCP to obtain a dynamic IP address from a DHCP server, you can set Method to .
Setting the Method
Available IPv4 Methods by Connection Type
When you click the Method dropdown menu, depending on the type of connection you are configuring, you are able to select one of the following IPv4 connection methods. All of the methods are listed here according to which connection type or types they are associated with.
- Method
- — Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses. You do not need to fill in the DHCP client ID field.— Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses but you want to assign DNS servers manually.— Choose this option if the network you are connecting to does not have a DHCP server and you do not want to assign IP addresses manually. Random addresses will be selected as per RFC 3927.— Choose this option if the interface you are configuring is for sharing an Internet or WAN connection.
- Wired, Wireless and DSL Connection Methods
- — Choose this option if the network you are connecting to does not have a DHCP server and you want to assign IP addresses manually.
- Mobile Broadband Connection Methods
- — Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses.— Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses but you want to assign DNS servers manually.
- VPN Connection Methods
- — Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses.— Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses but you want to assign DNS servers manually.
- DSL Connection Methods
- — Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses.— Choose this option if the network you are connecting to uses a DHCP server to assign IP addresses but you want to assign DNS servers manually.
PPPoE Specific Configuration Steps
If more than one NIC is installed, and PPPoE will only be run over one NIC but not the other, then for correct PPPoE operation it is also necessary to lock the connection to the specific Ethernet device PPPoE is supposed to be run over. To lock the connection to one specific NIC, do one of the following:
- Enter the MAC address in nm-connection-editor for that connection. Optionally select Connect automatically and Available to all users to make the connection come up without requiring user login after system start.
- Set the hardware-address in the [802-3-ethernet] section in the appropriate file for that connection in
/etc/NetworkManager/system-connections/as follows:[802-3-ethernet] mac-address=00:11:22:33:44:55
Mere presence of the file in/etc/NetworkManager/system-connections/means that it is “available to all users”. Ensure thatautoconnect=trueappears in the [connection] section for the connection to be brought up without requiring user login after system start.
For information on configuring static routes for the network connection, go to Section 10.3.9.6, “Configuring Routes”.
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