OpenCPN Radar Overlay PlugIn

[bdbcat]

Matt...

1. Multicast is how the Garmin radar scanner sends out its scan data. It is presumably done that way in order to support multiple simultaneous display heads.

2. gradar PlugIn works fine on Win7.

3. I sure would like to see your system simplified a bit in the network configuration, until we can get the radar working at least.
-Drop IPV6
-Unplug/disable the wireless adapter.
-Nuke the tunnel interface.

Who knows what is going on with your system, but lets get back to basics.

Simplify, simplify, simplify. Get gradar working. Then add complexity back, bit by bit, until it breaks.

Dave

[ChuckSK]

Matt

This is the network setup on my vista machine. Simple.



Also as previously suggested, power up the scanner before starting OpenCPN.

Chuck

[JRM]

Originally Posted by Helmsmatt

Pavel, Below is ipconfig /all We haven't made any more progress today. Tried disabling Windows Firewall, Trend Micro Internet Security, and wireless adaptor. No change to the pi_log. Still shows: 0: Found network interface: 10.50.10.123/24 1: Found network interface: 172.16.1.1/16 2: Found network interface: 127.0.0.1/8 3: Scanner at 172.16.2.0 is accessible. 4: UpdateState: PluginState [M] Searching (1) Scanner state: Unknown (0) 5: UpdateState: PluginState [M] Searching (1) Scanner state: Unknown (0) Chuck, Please explain why multicasting is required for gradar and how we can enable it in Windows 7. Thanks for all of your help. Matt & Cindy C:\Users\Cindy>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : Cindy-ASUS Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Broadcast IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Atheros AR8151 PCI-E Gigabit Ethernet Con troller (NDIS 6.20) Physical Address. . . . . . . . . : C8-60-00-52-01-F4 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::5d54:88f5:25b3:eb91%13(Preferred) IPv4 Address. . . . . . . . . . . : 172.16.1.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.240.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 298344448 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-17-72-9D-6F-C8-60-00-52-01-F4 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled Wireless LAN adapter Wireless Network Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) Centrino(R) Wireless-N 2230 Physical Address. . . . . . . . . : 68-5D-43-83-6D-64 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::dd08:3c2c:a0b1:c688%14(Preferred) IPv4 Address. . . . . . . . . . . : 10.50.10.123(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Sunday, December 15, 2013 10:56:19 PM Lease Expires . . . . . . . . . . : Monday, December 16, 2013 10:56:19 PM Default Gateway . . . . . . . . . : 10.50.10.254 DHCP Server . . . . . . . . . . . : 10.50.10.254 DHCPv6 IAID . . . . . . . . . . . : 359161155 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-17-72-9D-6F-C8-60-00-52-01-F4 DNS Servers . . . . . . . . . . . : 10.50.10.254 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{6BF76616-3448-4C32-8DB0-B3F097AF951F}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Teredo Tunneling Pseudo-Interface: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{FB016932-128C-4ECE-B0CB-A57EC6D22C95}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes

pi_log and ipconfig show different subnet masks for the 172.16.1.1 space. pi_log says /16 and ipconfig says /28. The given 172.16.2.0 address is outside the bound subnet. There doesn't seem to be a default route in that subnet, but maybe I'm missing it and I didn't see a routing table. Either way, that /28 subnet seems a bit odd.

Another command that sometimes sheds light is "netstat" which I believe is also available in windows. Feed it the option to bypass name lookups to save time (sorry, not really a windows guy so I don't know the flags off tr top of my head). Netstat will show you the ports that are actively bound and listening, as well as active connections. Might be helpful.

My scanner is sitting on my settee waiting installation, so you're a ways ahead of me. I am fascinated that Garmin spec'ed a crossover cable. I had to cut mine to feed it, and I just assumed the ends were the same. Thanks for the heads up, I'll have to look into that.

I don't know much about the grader plugin yet, but I spent years as a systems and network administrator in ISP land, so I'll help how I can.

JRM

[bdbcat]

Matt....

Multicast: Check this.
routing - How do I add a multicast route in Windows 7? - Server Fault

Dave

[Helmsmatt]

Dave,
We got the multicaster message. Found that site this morning....like minds.
Cindy is sending detail sooon.
Still no image.
Thanks,
Matt

[Helmsmatt]

Thanks to all for your dedication and input.

We have made a tiny bit of progress and have documented all the test steps and results of your setting suggestions. In summary, we found that we had the v12 version of gradar plug-in installed and when we installed the v13, the message "Successfully added to multicast group 239.254.2.0" started appearing. We disabled the "tunnels" and simplified the ipconfig. Disabled Windows Firewall, Wireless adapter, and virus protection. Verified that Radar was powered on before starting OpenCPN and IP settings were exactly like Chuck's. Still the Radar button in OpenCPN will not go green.

Here are the details of the steps taken and results:
1. Disabled Windows Firewall
2. Disabled Wireless adaptor
3. Checked OpenCPN plug-ins and realized that we still had the v12 installed.
4. Copied the v13 dll into plug-ins and deleted the v12 dll
5. Verified Radar and GPS are powered up
5. Started OpenCPN and saw that log now contains "Successfully added to multicast group 239.254.2.0"
6. Tried clicking on Radar button but indicator stays red.
7. Here is log:
0: Found network interface: 172.16.1.1/16
1: Found network interface: 127.0.0.1/8
2: Scanner at 172.16.2.0 is accessible.
3: Successfully added to multicast group 239.254.2.0
4: UpdateState: PluginState [M] Searching (1) Scanner state: Unknown (0)
5: Heading: 265
6: Heading: 0
7: Heading: 264
8: Heading: 0

8. Disabled tunnel adaptors using CMD as administrator:
netsh int teredo set state disabled
netsh int isatap set state disabled

9. Rebooted
10.Below is results of ipconfig /all showing that only the Ethernet adaptor is running
11. Verified that Local Area Connections only has "IP version 4" checked
12. Verified that IP version 4 properties are statically set to:
IP address: 172.16.1.1
Subnet mask: 255.255.240.0
Default gateway: 172.16.1.100
13. Verified that Windows Firewall is OFF
14. Verified that Micro Trend Internet Security & Virus Protection is OFF
15. Radar powered on. Started OpenCPN.
16. Log results are the same as above. Radar button does not turn green.




C:\Users\Cindy>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Cindy-ASUS
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR8151 PCI-E Gigabit Ethernet Con
troller (NDIS 6.20)
Physical Address. . . . . . . . . : C8-60-00-52-01-F4
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 172.16.1.1(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.240.0
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled

[ChuckSK]

Try cycling the power to reboot the scanner.

[JRM]

Ok, I see one of my mistakes, I was misreading your 172.16.1.1/20 as a /28. Old habits of SWIPing little networks die hard.

Still, that's a /20 in settings and a /16 from the log. At least it makes more sense as the addresses are in the same subnet.

I'll try and download the plugin tonight or tomorrow at work and play with it. But can anyone tell me why the plugin is expecting a different subnet mask? Is it hard coded?

JRM

[rontom]

Matt

Make sure its in Master mode before you Hit the Radar Button

[JRM]

OK, so instead of going out and digging the trenches in my yard like I should have, I downloaded the plugin source and compiled it, and I've been goofing off with it for a while. So far I've just been working in Linux, but I might get a wild hair and go dig up my kid's Windows laptop and try it there as well.

I've been able to replicate the issue with the CIDR notation, and started poking about in the code using Eclipse. It's beyond my current ability, but it's been a great learning experience. I'm working on pulling that conversion function out and getting it to compile on it's own so I can try and figure out how it works. But I have absolutely no clue what I'm doing. Installing Eclipse for me is like giving a six year old a shotgun... a recipe for disaster.

But I'm having a good time, and living the motto "If you can't tie a knot tie a lot."

JRM

[bdbcat]

Matt...

OK, now this has become a puzzle requiring a solution.
You seem to not be receiving any data from the scanner at all.

Cindy: Get wireshark

Wireshark · Download

Install and run wireshark with the scanner switched on, and OCPN inactive (not running). The scanner sends multicast status reporting continuously while powered up, with or without the OCPN PlugIn. gradar monitors these multicasts to determine the scanner status as reported in the log.

You should see something like the attached screen.

Dave

[Helmsmatt]

Tried recycling the scanner, and also have previously put it in master mode before clicking the radar button. Doesn't even turn green for a second.
We previously were getting constant status lines on the pi log, but no longer are, so if the scanner is sending status continuously, we're no seeing it. Seems to be running differently since uploading the 1.3 plugin. We only see the boot up, IP address report, and one status line, then just an occasional heading....
Cindy is going through Dave's wires shark message. She's downloading it now. Funny, an IT friend suggested using wire shark at a holiday dinner last night....
Thanks.

[Helmsmatt]

Here are our Wireshark results:

[bdbcat]

Matt....

Well, rats

The scanner is multicasting, and your hardware is receiving it. But the PlugIn is not....

Wireshark is very capable, but it still seems odd that he can see packets, and OCPN cannot....

I'm going to build you a custom gradar with some more verbose logging.

btw, we changed the logging in 1.3 to only log status lines on changes, just to reduce the clutter and traffic in the log window. If (when) all is working correctly, you will see an immediate log of scanner status as "standby", and the toolbar icon will switch to amber in color.

Please stand by til Tuesday AM...

Dave

[bdbcat]

Matt...

For reference, I brought up a virgin Win7 machine with OCPN and gradar 1.3.

No fiddling required, it just worked. Screenshot attached.

Studying code....

Dave