r0 = socket$packet(0x11, 0x2, 0x300)
ioctl$sock_SIOCDELRT(r0, 0x890c, &(0x7f0000001c80)={0x0, @l2tp={0x2, 0x0, @multicast1}, @l2tp={0x2, 0x0, @local}, @l2={0x1f, 0x0, @fixed}})