December 2015
Intermediate to advanced
250 pages
4h 41m
English
Content preview from Red Hat Enterprise Linux Server CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Creating a bridge
A network bridge is a logical device that forwards traffic between connected physical interfaces based on MAC addresses. This kind of bridge can be used to emulate a hardware bridge in virtualization applications, such as KVM, to share the NIC with multiple virtual NICs.
Getting ready
To bridge two physical networks, we need two network interfaces. Your physical interfaces should never be configured with any address as the bridge will be configured with the IP address(es).
How to do it…
For the sake of ease, the physical network interfaces we will bridge are eth1 and eth2. The IPv4 address will be 10.0.0.2 with a subnet mask of 255.0.0.0 and a default gateway of 10.0.0.1.
Creating a bridge using nmcli
Make sure that you activate the ...