Dear all, I am setting up a GRE tunnel using Open vSwitch. In the ovs-vsctl command when I set the gre interface I also declare a remote_ip in the options. To use the gre key I add another option named key. Please if anybody can help me in finding out that once I set the key in the gre options how is the netlink library used to bring this *key* from user space to kernel space and then the key is further used in the tunnel.c code to get stored in mutable->out_key field. If anyone could elaborate the procedure of bringing this key in kernel space it would be really helpful. Actually I want to create more options when I set up the tunnel and then use these options in my code, which I think would become very easy if I know the working of netlink library in OVS.
Regards, Saleha Asad
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