On 1/2/2013 10:16 PM, Mikael Abrahamsson wrote: > You don't really need happy eyeballs as long as you get connection refused. > Much better to just give RST if a service is not supported over IPv6, than > to drop the packet. RST gives TCP a chance to try other IP(v4|v6) addresses > and see if it can establish a session to it. Thanks. Frank