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How do I set and make the default gateway persistant across reboots?

April 26, 2017Default Gateway persistant reboots

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How do I set and make the default gateway persistant across reboots?

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The default gateway is easy to configure, just put the IP address of the default gateway in /etc/defaultrouter. If this file doesn’t exist just create it and add the IP. The IP address of the gateway should be the ONLY thing in this file, nothing else. Typically you should just use echo, like this: “echo 10.0.0.255 > /etc/defaultrouter”. Once you’ve changed the file you can restart the physical network interfaces to make the changes effective without a reboot (“svcadm restart physical”).