Best udp software for free download

HHD Accurate Network Monitor - ip packet sniffing, monitoring and protocol analyzer software tool that can sniff internet protocols performing tcp / ip, udp / ip communication traffic analysis. LAN connection sniffer and internet data capture utility
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Kiwi Logger (KLOG) is a free suite of syslog message sending tools for Windows. The tools allow you to add syslog message sending capabilities, via UDP or TCP, to your applications. The syslog messages can be received by Kiwi Syslog Daemon
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X-NetStat Professional shows your current Internet and network connections (addresses, ports used, traffic, age, process EXE, status). Includes IP-Lookup Tools, Network Statistics, Remote Access Server, Rules, Port Database. It's Internet radar.
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Comm Operator PPC is a powerful RS232 device emulator on Pocket PC. It supports communication with both serial port, include rs232, rs422, rs485 and TCP & UDP based protocol. It works with Wifi, Ethernet and Bluetooth besides normal serial port.
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Monitor network hosts, shared resources, and traffic, get MAC addresses, scan TCP and UDP ports, and be notified when devices turn on or go down. Create network diagram and see your network's state in visual form at any time.
The program includes a number of features for administrators such as sending messages, shutting down and turning on remote computers, ping, name lookup, trace route, obtaining information on remote computers, creating reports, etc. LANState does not require installing any client software on the remote computers on your network.

Main features:
1. Modeling a local area network diagram in a visual mode and then saving the result as a map with images.
2. Monitoring hosts (ICMP ping and connecting to TCP port are supported).
3. Monitoring the usage of your shared resources by other users of the network.
4. Monitoring load of your network card (incoming/outgoing traffic).
5. Searching hosts by ICMP ping or scanning TCP ports.
6. Retrieving computer's network name by its IP address.
7. Notifying on events by playing a sound, writing to log, running program, sending e-mail, etc.
8. Performing actions on devices via the configurable context menu.
9. ICMP, TCP/IP, DNS, ARP, MAC, SNMP monitoring, etc.
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HS TFTP is a software library in C (supplied with full source code) which implements Trivial File Transfer Protocol (TFTP) over UDP socket layer according to RFC 1350. Support for client and server side for both file get and put are provided. Optional 1024 block size vs 512 size configuration is available

HOW IT WORKS: When user application initlialises Hs TFTP library, it provides interface callbacks for the services used by HS TFTP protocol module: timer management, memory management and event callbacks. This architecture makes it easy to port HS TFTP protocol module to any environment. HS TFTP internally at a lower layer interfaces to HS Sock library which provides UDP transport services. User application need not worry about Winsock - HS TFTP does all transmission, reception and event handling over socket layer.

TFTP module handles all protocol information flow, error recovery, acknowledgements, timeouts and so on. When it is appropriate to send next block of data HS TFTP will get next memory block from user application. Similarly, when data has been received HS TFTP module will get the next block of memory from user application to store data into

Along with XMODEM or as an alternative, TFTP is often used in embedded devices and appliances for the purpose of software or configuration upgrade or retrieval.

HOW TO BUY HS TFTP LIBRARY:
You can purchase the library online using credit card payment at:
http://www.hillstone-software.com/hs tftp_buy.htm
The library currently costs EUR 49.00 for unlimited user license. Once the purchase is made you will receive download link by email to download full product deliverables, which include:
- HS TFTP library binaries. (Win32 static library)
- HS TFTP library full source code in C with MS Visual C project workspace
- HS TFTP Demo Application binaries, full source code and MS Visual C project workspace.
- HS TFTP library user manual, which documents in detail complete library API.
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sMonitor is a network monitoring software that allows you to verify the network connectivity of TCP/IP hosts on the Internet and LAN. The program periodically pings, or checks TCP and UDP ports on user specified computers or other network devices. If the destination host fails to reply to a ping, connection request, or user datagram, sMonitor alerts you using audible alarms, visible notifications, e-mail messages, third-party software, modem and telnet connections. Also, the program generates log files, CSV format files, creates and uploads by FTP the HTML file, which reflects a current status. Based on test results, the program can operate remote systems (power management, reboot, alarm reporting) by modem and telnet using custom scripts. sMonitor can run as standard Windows application or NT service.
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HS NTP is a software library in C (supplied with full source code) which implements the client side of Network Time Protocol (NTP) over UDP socket layer according to RFC1769 and RFC1305. HS NTP Library allows a user application to synchronise local system time to remote NTP server time.

First user application calls HS NTP initialisation function supplying pointers to callback functions in user code for timer management and for reporting NTP events to user.

To obtain time difference between local system and remote NTP server, the user application calls HsNtpGetTime function, specifying NTP server name or IP address and source UDP port to use.

HS NTP library then resolves the server name, formats and sends NTP time request packet according to RFC1305 and RFC1769 standard. Once HS NTP has received NTP time reply from NTP server it analyses the reply and reports the resulting time difference to user application via callback function. The parameters to this event callback contain the offset value in seconds necessary to apply to local clock in order to synchronize it to the time at remote NTP server.

Modular design makes it easy to port HS NTP protocol module to any environment. HS NTP internally at a lower layer interfaces to HS Sock library which provides UDP transport services. User application need not worry about Winsock - HS NTP does all transmission, reception and event handling over socket layer.
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Comm Operator is a powerful tool for serial port, TCP/IP and UDP port communication. It is professional software for debugging, testing and troubleshooting RS232 related devices. Data can be sent and received in Text/String, Hex and Decimal format. Auto send mechanics makes it a full functional device simulator. Send data list can be created from text file directly. All existed COM Ports can be detected automatically. All settings can be saved to a file for later use. Unified operating GUI makes it easy to use. FeaturesCommunicate with Serial Port, TCP/IP, UDPSend/receive data in Text, Hex and Decimal format Send data automatically with rules Send data from predefined list Work with multiple send data list files Create send data list from text file Support drag and drop to open send data list directly Keep log to a file for send/receive data Detect all existed COM ports automatically Keep all settings for later use
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10-Strike LANState is designed for Microsoft Windows network administrators and regular users. LANState is a visual network monitor which allows you to see your network's state at any time. It displays network map and monitors device state (active/inactive) in real-time. LANState monitors shared resources, shows traffic speeds, and notifies you on miscellaneous events.LANState also contains many useful tools for administrators and users such as sending messages, shutting down and turning on remote computers, scanning hosts, ping, name lookup, etc. It includes a number of useful features for obtaining information on remote computers and doesn't require installing any client software on the remote computers on your network.Main features:Modeling a local area network in a visual mode and then saving the result as a map with images.Monitoring hosts (ICMP ping and connecting to specified TCP port are supported).Obtaining information on remote computers: IP address, current user, accounts and groups, domain, server, operation system used, current date and time, MAC-address, available shared resources, connected users, registry, services and devices, processes running.Monitoring the usage of your shared resources by other users of the network.Monitoring load of your network card (incoming/outgoing traffic).Searching hosts by ICMP ping or scanning TCP ports.Scanning TCP ports.Controlling access permissions for your shared resources.Pinging any computer on the network.Retrieving computer's network name by its IP address.Sending regular and anonymous messages to any computer on the network.Shutting down and restarting any computer on the network (when required permissions are granted on the remote computer).Turning on remote computers (wake-on-LAN).Notifying on events by playing a sound, writing to log, running program, sending e-mail, etc.Performing actions on devices via the configurable context menu.Tracing routes.
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This utility monitors open TCP and UDP ports on your PC. It brings you an enhanced functionality of a similar tool that comes with Windows operating system: netstat. Open Ports Scanner in addition to the ports information available from your operating system, allows you to map an open port to the process running on your PC. You may easily catch spyware, malware and trojans when using this tool. Just search for suspicious TCP connections. You may instantly terminate unwanted connections right from this software. Monitoring features include TCP or UDP view filter and refresh speed timer. Full list of displayed data includes protocol name, process name, process ID, local port, local address, remote port, remote address and connection status. You may instantly close an open unwanted connection or export / print the list of open ports into a text file for future research.
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A "Must have" quick reference for IT/Networking professionals and students who are learning and using TCP/IP; Comprehensive Protocol Map focus on TCP/IP protocol suite and key layer 1 and 2 LAN, WAN an MAN protocols; Detailed explanations of IPv4 and IPv6; IPv4 and IPv6 addressing schemes; IPv4 and Ipv6 comparison; TCP and UDP explanations and header structures; Descriptions of commonly used TCP/IP utilities such as ICMP, TCPdump and Ping; Comprehensive list of the mostly used TCP and UDP port numbers ; Formatted in the 8.25 in x 11 in paper size for easy printing and use as a portable reference.
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