How to find out GATEWAY address for static ip setup in Rocky Linux?

UNIX for Beginners Q & A
1 
TYPE="Ethernet"
BOOTPROTO="none"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
NAME="enp0s3"
UUID="bb5e5b01-946d-493e-b595-1891bb0bab19"
DEVICE="enp0s3"
ONBOOT="yes"
ETHTOOL_OPTS="autoneg on"
IPADDR="10.0.2.16"
NETMASK="255.255.255.240"
GATEWAY="10.0.2.230"
DNS1="8.8.8.8"
DNS2="8.8.4.4"

Then,

[root@server network-scripts]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:7a:1d:85 brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic noprefixroute enp0s3
       valid_lft 86101sec preferred_lft 86101sec
    inet6 fe80::a00:27ff:fe7a:1d85/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

It seems like rocky linux 9 is not recognizing the config file located at /etc/sysconfig/network-scripts/ifcfg-enp0s3, How do I make it recognize it. I was reading about it and learnt that things had changed in RL9. So, let's hope for help here.

2

Maybe it's using network manager. Check with

systemctl status NetworkManager

Try to import the legacy sysconfig files to a default connection:

nmcli connection reload
nmcli connection show
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3

It could be that NetworkManager has an existing connection profile for this interface in /etc/NetworkManager/system-connections/. If it does, that would take precedence over your /etc/sysconfig/network-scripts/ legacy interface configuration file.

For more information on the NetworkManager connection profile keyfile format, see the following Red Hat documentation:

Chapter 26. NetworkManager connection profiles in keyfile format

Hope this helps !

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