How to drop IP packets received on the default route interface when no other than default route is found?
I am setting up a router based on a linux kernel. As expected, ipv4 packets received on the interface used by default route are sent back to the same interface in case no other route is found.
Is there a way to prevent ipv4 packets received on the default route interface to be sent back to the same interface? I want the packets to be dropped instead of being sent back.
I have been looking in /proc/sys/net/ipv4/conf but didn't find anything. My hope is to find a simple setting somewhere instead of using ip tables.
I am setting up a router based on a linux kernel. As expected, ipv4 packets received on the interface used by default route are sent back to the same interface in case no other route is found.
Is there a way to prevent ipv4 packets received on the default route interface to be sent back to the same interface? I want the packets to be dropped instead of being sent back.
I have been looking in /proc/sys/net/ipv4/conf but didn't find anything. My hope is to find a simple setting somewhere instead of using ip tables.
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