multiple resources

documentation/Wireshark/README.md

@@ -7,9 +7,11 @@
 > Wireshark development thrives thanks to the volunteer contributions of networking experts 
 > around the globe and is the continuation of a project started by Gerald Combs in 1998.
 
-Wireshark is an excellent open-source tool with wide use.  Capabilities include inspection of <code>dis</code> packets.
+[Wireshark](https://www.wireshark.org) is an excellent open-source tool with wide use.
+Capabilities include inspection of <code>dis</code> packets.
 
-[Capturing DIS Packets](Capturing_DIS_Packets.pdf) by Tobias Brennenstuhl is his [thesis annex](https://calhoun.nps.edu/handle/10945/65436)
+[Capturing DIS Packets](Capturing_DIS_Packets.pdf) by Tobias Brennenstuhl is his
+[thesis annex](https://calhoun.nps.edu/handle/10945/65436)
 specifically written to help support student efforts.
 
 ## Installation and Configuration
@@ -23,7 +25,7 @@ Always use the latest so that operating-system security and feature sets are up
 
 | Successful installation, monitoring | Failed installation, no monitoring |
 | ------ | ------ |
-| <a href="images/WiresharkNetworkInterfaces.png"><img src="images/WiresharkNetworkInterfaces.png" width="300" align="center"/></a> | <a href="images/WiresharkNoNetworkTraffic.png"><img src="images/WiresharkNoNetworkTraffic.png" width="300" align="center"/></a> |
+| <a href="images/WiresharkNetworkInterfaces.png"><img src="images/WiresharkNetworkInterfaces.png" width="400" align="center"/></a> | <a href="images/WiresharkNoNetworkTraffic.png"><img src="images/WiresharkNoNetworkTraffic.png" width="400" align="center"/></a> |
 
 4.  Check your network interfaces via console commands [ipconfig](ipconfig.txt)
 5.  Double-check network interfaces using [ipconfig /all](ipconfigAll.txt) to see any hidden interfaces
@@ -32,18 +34,25 @@ Always use the latest so that operating-system security and feature sets are up
 
 1. Confirm preferences: File &gt; Preferences &gt; Capture as shown
 
-<a href="images/WiresharkCapturePreferences.png"><img src="images/WiresharkCapturePreferences.png" width="300" align="center"/>
+<a href="images/WiresharkCapturePreferences.png"><img src="images/WiresharkCapturePreferences.png" width="400" align="center"/>
 
 2. Set filter to dis
 3. Lauch one of the example programs to send packets, then observe results.
 
-<a href="images/WiresharkUdpDisPduCapture.png"><img src="images/WiresharkUdpDisPduCapture.png" width="300" align="center"/>
+<a href="images/WiresharkUdpDisPduCapture.png"><img src="images/WiresharkUdpDisPduCapture.png" width="400" align="center"/>
 
 ## Troubleshooting
 
-1. huh
+1. Check your [firewall settings](Firewall_Configuration.pdf).  (Again thanks to Tobias for another helpful reference.)
+2. Compare Wireshark results with/without your [Virtual Private Network (VPN)](https://en.wikipedia.org/wiki/Virtual_private_network) active. 
+3. Compare Wireshark results when logged in as local administrator, if possible.
+4. Consult resources in the References section below.
+5. [StackOverflow](https://stackoverflow.com/search?q=wireshark) is an excellent resource for detailed technical questions, looking up error messages, etc.
 
 ## References
 
-1. Wireshark intro video and Go Deep
-2. Wireshark FAQ
+1. [Wireshark](https://www.wireshark.org) home and [Learning Wireshark](https://www.wireshark.org/#learnWS) intro video and Go Deep
+2. [Wireshark User’s Guide](https://www.wireshark.org/docs/wsug_html_chunked)
+3. [Wireshark Frequently Asked Questions (FAQ)](https://www.wireshark.org/faq.html)
+4. [NPS Remote Access and Wireless Services](https://nps.edu/web/technology/remote-access)
+5. Tobias Brennenstuhl, [REPEATABLE UNIT TESTING OF DISTRIBUTED INTERACTIVE SIMULATION (DIS) PROTOCOL BEHAVIOR STREAMS USING WEB STANDARDS](https://calhoun.nps.edu/handle/10945/65436), MOVES Masters Thesis, Naval Postgraduate School (NPS), Monterey California USA, June 2020.