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In this article we will focus exclusively on setting up the routing table on our RHEL 7 box to make sure that it can both access the Internet through router #1 and the internal network via router #2. This scenario is illustrated in the diagram below: Static Routing Network Diagram We have a Red Hat Enterprise Linux 7 box connecting to router #1 to access the Internet and machines in 192.168.0.0/24.Ī second router (router #2) has two network interface cards: enp0s3 is also connected to router #1 to access the Internet and to communicate with the RHEL 7 box and other machines in the same network, whereas the other ( enp0s8) is used to grant access to the 10.0.0.0/24 network where internal services reside, such as a web and / or database server. Let us define the following scenario for this tutorial. Unless specified otherwise through static routing, network packets are directed to the default gateway with static routing, other paths are defined based on predefined criteria, such as the packet destination. Static routing is the process of specifying a route for network packets other than the default, which is provided by a network device known as the default gateway. However, in order to effectively accomplish this in any situation, network packets need to be routed, or in other words, the path they follow from source to destination must be ruled somehow. One of the wonders of modern networking is the vast availability of devices that can connect groups of computers, whether in relatively small numbers and confined to a single room or several machines in the same building, city, country, or across continents. Static Routing in Red Hat Enterprise Linux 7 Please note that we will not cover them in depth, but rather organize these contents in such a way that will be helpful to take the first steps and build from there. RHCE: Setup and Test Network Static Routing – Part 1
#Centos 7 static ip gateway series#
In this Part 1 of the RHCE series and the next, we will present basic, yet typical, cases where the principles of static routing, packet filtering, and network address translation come into play.