Change the default route in Solaris
Contributed by qmchenry 
Tagged: Solaris networking
Step 1: edit /etc/defaultrouter
Using the editor of your choice, edit the file /etc/defaultrouter — the only line in the file should be the default route of the system, for example: 192.168.1.1. This change will not take effect until the system is rebooted.
Step 2: Delete the current default route
To make the route change take effect immediately, you must first delete the default route. If the current default route is 192.168.254.1, then the command would be:
route delete default 192.168.254.1
Step 3: Assign the current default route
To implement the new default route without rebooting the system, use the following command substituting your default route for 192.168.1.1:
route add default 192.168.1.1
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Anonymous said on November 24, 2008
Can I add more then one default router in solaris
Adrien HEBRARD said on November 26, 2008
Faster on Solaris 10:
route change default 192.168.1.1
This should be run for permanent modification:
route -p change default 192.168.1.1
Mike Bell said on December 21, 2008
Thanks Adrien, your help is appreciated
Rusman said on May 26, 2009
Thanks for the tip!
DT said on June 4, 2009
If you want to make the route persistent, use this:
route -p add default 192.168.1.1
ZaieN said on February 8, 2010
Hi… When i issue command ‘netstat -rn’ why my default route always disappear when my server restarted?
David M said on May 29, 2010
Make sure your setting is in /etc/defaultrouter and /etc/hosts as the “router” entry