Baidu ip4 for www.baidu.com.

Gin construct gin context, Example: ctx,resp := Gin[RegistReq,RegistResp](t, RegistReq{Name:"Tom"}) ctr.Regist(ctx) require.Equal(t, http.StatusOK, resp.Code) // or other check.

Post construct http post request.

maybe not valid ip.

ValidPingPongConn if set udpMss, means conn is datagram.