The Snooper & EtherProbe
Now available for Linux! Requires Linux with libc5 or libc6, an
Ethernet card, and the X Window System.
Real-Time Network Protocol Capture and Analysis for the Desktop
The Snooper and EtherProbe - two great analyzers from General Software
(now sold by Crynwr Software) that help you pinpoint and solve
problems on your Ethernet network. Whether you're into protocol
development or network management, you'll be able to use these
products to accomplish the same things you would ordinarily use a
hardware protocol analyzer to do without the hardware analyzer price
Ethernet Protocol analyzers for NetWare, LAN Manager, and TCP/IP
You'd think a hardware analyzer would outperform a software analyzer.
A $15,000 'hardware' analyzer is really just a $14,000 PC with a
$1,000 software package. Why pay $14,000 for a PC when you don't have
to? There's no need for expensive hardware if you already have a 386,
486, or Pentium-based PC and a 16-bit network card.
If you need basic traffic capture, protocol decoding for NetWare,
LAN Manager, and TCP/IP and the ability to save captured data to
disk, The Snooper and EtherProbe are perfect solutions.
The Snooper is a very cost-effective product that turns your PC into a
protocol analyzer. Just add virtually any NIC and The Snooper will
capture, decode, and display network traffic just like the hardware
analyzers do. The Snooper is also ideal for LAN product development
where protocols must be checked and optimized for performance.
We made The Snooper more than just a traffic capture facility. It
also shows traffic densities and network utilization by protocol suite
and file request type (open, close, read, write, etc.). And, The
Snooper can save captured data to disk in "Sniffer-compatible" format,
so that data can be interchanged with your existing or rented hardware
Both The Snooper and EtherProbe offer summary, detail, and
hexadecimal breakdowns of network traffic, packet-by-packet.
Real-time statistics periodically sample the network status,
or run the analyzer continuously.
The Snooper also comes with full source code. If you're a protocol
developer, you can easily add additional protocol decoding and
displays, using the templates we provide. Or, you can integrate The
Snooper into your embedded application for a low, per-copy royalty.
EtherProbe provides all of the real-time capturing, decoding, and
displays that The Snooper does, and then adds traffic generation,
capture triggers, and 45 alarms to help manage your network.
Both The Snooper and EtherProbe provide continuous real-time
network status on any PC. Choose from four real-time statistics
screens (3 are shown), to zoom-in on file-sharing activity or protocol
classes, or zoom-out and see aggregate distribution of unicast,
multicast, and broadcast packets. Broadcast storms, excessive
collisions, and a saturated network are easily spotted and
Generate Traffic with EtherProbe using custom or pre-defined
With EtherProbe's traffic generator, you can actually create LAN
traffic yourself with customized or automatically-generated packets,
complete with serialization, protocol headers, and user-defined data.
Traffic generation is an important tool for determining the
performance and correct operation of network routers, network
interface cards, and cabling systems.
Etherprobe's capture triggers let you defer capturing until a specific
programmed event occurs--such as a specific time of day, when certain
embedded data arrives, or when an alarm is activated.
EtherProbe's 45 alarms can trigger events based on traffic densities,
protocol densities, or file requests. Alarms can pop-up messages to
your screen, log events to disk, and even start traffic capture for
later analysis of important events.
45 Alarm Options on EtherProbe keep a close eye on network
Built-in Support for Major Protocol Suites
There is nothing else to buy, and no costly add-ons. That's because
both EtherProbe and The Snooper already decode most major Ethernet LAN
protocols. TCP/IP, XNS, Novell Netware's IPX/SPX and NCP, Microsoft
LAN Managers 802.2, NETBEUI, and General Software's Embedded LAN are
supported from the very beginning.
Both products recognize (with hexadecimal decoding) over 100
additional protocols, such as Appletalk, ISO, and SNA, so you can
quickly determine what types of protocols are running between stations
on a network. Developers using The Snooper can add decoding for these
and other protocols directly to the product's source code.
High-End Analyzer Features
Both of our software-based network analyzers offer the same high-end
features you'd expect from a hardware model. Decoding of all major
protocols, address filtering, protocol-level filtering, and name
management (assignment of symbolic names to addresses) are some of the
features that make our network analyzers practical in a real-live
"We were able to add new
protocols and add statistics'
display to the product and are
very happy with EtherProbe."
- D. Neilson, Utah Power.
Address and Protocol Filtering
Another way to simplify complex traffic is to eliminate "background
traffic" by specifying the actual addresses you're interested in.
EtherProbe and The Snooper allow you to specify filters based on a
packet's source and/or destination addresses.
Both products allow you to restrict which packets are captured based
on what protocols they carry at any level.
The 12-digit hexadecimal Ethernet addresses in protocol decoding
displays can be made easier to read by substituting 12-character
symbolic names, like "John's PC", "SuperServer", or "Cyclone". With
translated addresses, traces of multiple simultaneous conversations
become clearer and are easier to review.
- Run Your Software-Based Protocol Analyzer from any PC
- Multilevel Protocol Decoding (DLC, Network, Transport, File Service)
- Real-Time and Display-Time Traffic Filtering
- Built-in DLC Address Name Management
- User-Selectable Automatic Capture TRiggers
- 45 User-Programmable Alarms for Problem Tracking
- Automatic Traffic Generation for LAN Fault Diagnosis
- Capture File Formats "Sniffer"-compatible
The Snooper and Etherprobe Analyzers
- Choose basic or extended features
- The Snooper performs basic protocol decoding and analysis
- EtherProbe adds Triggers, Alarms, and Traffic Generation
- Both decode LAN Mananer, Netware, and TCP/IP protocols
High Performance Capture and Display
- Highly optimized capture system
- On-the-fly address/protocol filtering
- Fast, smooth, Netware-style windowing interface
Standard Crynwr Packet Driver Support
- Widely-supported open standard
- Supports most standard NICs
- Drivers included with each product
- Driver source code included free
- Third-party support available
Real-Time Statistics Displayed During Capture
- Network KB/sec
- Total Packets/sec
- Huge Packets/sec
- Network Collisions
- Broadcast Traffic Density/sec
- Multicast Traffic Density/sec
- Unicast Traffic Density/sec
- Packets/sec by Protocol Type
- Packets/sec by File I/O Request Type
Easy To Use
- Simple 5-minute installation
- Well-documented user manual
- Includes Ethernet tutorial chapter
- On-line context-sensitive help
- Familiar Novell-style interface
- PC, XT, AT, 386, or 486 computer
- DOS Version 2.0 or above
- 512KB main memory
- 1 Floppy disk drive
- Ethernet network interface card
- IEEE 802.2
- Xerox IDP/XNS
- Novell IPX/SPX
- LAN Manager NETBEUI
- LAN Manager SMB
- Embedded LAN Transport
Real-Time Capture Displays
- aggregate Utilization
- By Protocol Family
- By File Sharing Request Type
- By Station Address
- By Node Pairs
- By Protocol During Capture
- By Protocol During Display
- Summary-level (one line/packet)
- Detail (multiple lines/packet)
- Hexadecimal (hex dump)
DLC Name Management
- Assign Names to Addresses
- Load/Save Names to Disk
Options & Disk I/O
- Load/Save Capture Buffer to Disk
- Print Formatted Capture Butter
- Click Speaker on Packet Arrival
- Stop Capture on Buffer Full
- Truncate Packets to Size
Programmable Traffic Generation -- EtherProbe Only
- User Data Transmission
- Packet Sequencing
- 802.2 Ul Encapsulation
- Raw Bluebook Transmission
- Repeated Transmission
- 802.2 SAP Selection
- 802.3 Address Selection
Capture Triggers -- EtherProbe Only
- By Hex Data Within Packets
- At Specific Time of Day
- On Alarm Activation
45 Programmable Alarms -- EtherProbe Only
- Network Utilization Alarms
- File Sharing Request Alarms
- Protocol Usage Alarms
We strive to provide the best service, value, and experience in
everything we do. That includes creating great products that lead the
competition, so you can stay ahead of yours.
- Source is included with The Snooper, $500 additional with EtherProbe.
- Both products come with a printed manual.
- EtherProbe includes an NE2000-compatible ISA Ethernet adapter.
"The Snooper from General Software
has proven to be an invaluable tool
for my network-related development
efforts, andfor those of the team. I
consider it at least as powerful and
useful as competing products costing
tens of thousands of dollars or more,
and without hesitation recommend it
to any network programmer
- Forrest Foltz,
We have FREE FAX, BBS and E-Mail basic technical support, so you can
get answers to complex application questions quickly. We also offer
premium support that puts you directly in contact with a product's
development team. You'll obtain valuable expertise by speaking with a
network engineer who can advise you of ways of improving your network
by using The Snooper or EtherProbe.
In business since 1991, we've helped over a thousand developers and
network administrators solve simple to complex network and systems
problems. Let us help you with your network problems.
"EtherProbe is a true first class
network tool. Out of the box, in five
minutes I detected two incorrectly
programmed routers and increased my
network's performance by 15%!
EtherProbe is easy to use, straightforward,
and flexible. A valuable 'probe'
for my networking bag of tricks."
- J. Kidder,
Martin Marietta Energy Systems
Call us toll-free: 1-800-233-7351. We accept purchase orders on
net-30 terms from qualified institutions. We also accept Visa,
Mastercard, or American Express. Snooper costs $350, and EtherProbe
$995. Priority Mail shipping is free. Overseas shipping is an
additional $10, and overnight shipping is an additional $20.
521 Pleasant Valley Rd.
Potsdam, NY 13676-3213 USA
© 1999 Crynwr Software. All rights reserved. The Snooper and
EtherProbe are trademarks of General Software, Inc. All other
products and logos are trademarks of their respective owners. Product
specifications subject to change without notice.