1:change every incidents where use sockaddr,sockaddr_in, and int.
 1:change IpVerify not to depend on IPv4 address
 1:think about test plan since IPv6 port is kind of overhaul. changing occurs in many places.
-1:Examine external libraries that deals with network. gSOAP, OpenSSL, and what else?
 
 {section: Done}
 
+*:Examine external libraries that deals with network. gSOAP, OpenSSL, and what else?
 *:investigate ipv6 address handling in C++ Boost library
 *:investigate security and authentication code that deals IPv4 address directly. IP verifier?
 *:investigate every source code where calls obsolete BSD socket interface.