To configure static routing on a Red Hat Enterprise Linux (RHEL) system, you will need to edit the system's network configuration files and add the appropriate routing rules.
Here's a general outline of the steps you will need to follow to configure static routing on a RHEL system:
Determine the network interface and IP address of the system that will be used as the default gateway. This is the interface and address through which the system will route traffic to other networks.
Open the /etc/sysconfig/network file in a text editor. This file contains the system-wide network configuration options.
Add a line to the file in the following format:
GATEWAY=<gateway_ip_address>
Replace <gateway_ip_address> with the IP address of the default gateway.
Save the file and close the text editor.
Open the /etc/sysconfig/network-scripts/route-* files in a text editor. These files contain the routing rules for each network interface on the system.
Add a line to each file in the following format to specify a static route:
<destination_network>/<mask> via <gateway_ip_address> dev <interface>
Replace <destination_network> with the destination network, <mask> with the network mask, <gateway_ip_address> with the IP address of the gateway, and <interface> with the network interface.
Save the files and close the text editor.
Restart the network service to apply the changes. You can use the systemctl command to restart the network service.
systemctl restart network
Once you have configured static routing on your system, it should use the specified routing rules to route traffic to other networks. Consult the Red Hat Enterprise Linux documentation and online resources for more information on how to configure and manage network settings on your system.