The new Cisco IOS Firewall for Internet Protocol version 6 (IPv6) provides stateful inspection to both existing IPv4 and IPv6 traffic on a single interface for enhanced performance, along with better management of the IPv6 migration process.
Causes of Muscle contractions that are rare. The offical US government definition of a rare disease is one that affects 200,000 people or less. The following causes of Muscle contractions appear in the population at a rate of less than 200,000 people per year in the USA: 1  Alpers Syndrome-involuntary muscle contraction. 2  Fahr's Syndrome-athetosis. 3  Ramsay Hunt syndrome Type II-involuntary muscle contraction.
As you start exercising, you may experience pain, like leg cramps, alongside the health benefits. According to the Mayo Clinic, the following is what causes leg cramps: -Dehydration -Muscle overuse -Muscle strain Repeating a particular motion for a long period or standing in one place too long may also lead to cramping. The best thing that you can do to avoid leg cramps is to stay hydrated by drinking water. You can also drink sport drinks, which will replace lost electrolytes. Leg cramps from muscle overuse or strain should be treated through regular stretching exercises.