Broadcast happens twice
Opened this issue · 1 comments
Haso-M commented
Hi, WinIPBroadcast partially solved my problem on Windows 7.
I'm using GX Wokrs2 (PLC programming IDE from Mitsubishi) to find available PLCs in the network.
Unfortunatly broadcast happens twice, and the IDE sees the same PLC (same IP address) twice, thus creating IP duplication error.
Wireshark log
-------------
No Time Source Destination Protocol Length Info
======================================================================================
11 5.093238 192.168.56.1 255.255.255.255 UDP 84 51298 > 5559 Len=52 <- used broadcast interface
12 5.093546 10.0.0.144 255.255.255.255 UDP 84 51298 > 5559 Len=52
13 5.093652 10.0.0.144 255.255.255.255 UDP 84 51298 > 5559 Len=52
14 5.094067 192.168.149.1 255.255.255.255 UDP 84 51298 > 5559 Len=52
15 5.094217 192.168.149.1 255.255.255.255 UDP 84 51298 > 5559 Len=52
16 5.094335 192.168.116.1 255.255.255.255 UDP 84 51298 > 5559 Len=52
17 5.094559 192.168.116.1 255.255.255.255 UDP 84 51298 > 5559 Len=52
Routing table on my machine
---------------------------
Interface List
11...44 37 e6 c4 0f 08 ......Intel(R) 82579LM Gigabit Network Connection
13...0a 00 27 00 00 0d ......VirtualBox Host-Only Ethernet Adapter
19...00 50 56 c0 00 01 ......VMware Virtual Ethernet Adapter for VMnet1
20...00 50 56 c0 00 08 ......VMware Virtual Ethernet Adapter for VMnet8
1...........................Software Loopback Interface 1
21...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
17...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
18...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #4
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.0.0.1 10.0.0.144 20
10.0.0.0 255.0.0.0 On-link 10.0.0.144 276
10.0.0.144 255.255.255.255 On-link 10.0.0.144 276
10.255.255.255 255.255.255.255 On-link 10.0.0.144 276
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.56.0 255.255.255.0 On-link 192.168.56.1 266
192.168.56.1 255.255.255.255 On-link 192.168.56.1 266
192.168.56.255 255.255.255.255 On-link 192.168.56.1 266
192.168.116.0 255.255.255.0 On-link 192.168.116.1 276
192.168.116.1 255.255.255.255 On-link 192.168.116.1 276
192.168.116.255 255.255.255.255 On-link 192.168.116.1 276
192.168.149.0 255.255.255.0 On-link 192.168.149.1 276
192.168.149.1 255.255.255.255 On-link 192.168.149.1 276
192.168.149.255 255.255.255.255 On-link 192.168.149.1 276
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 10.0.0.144 276
224.0.0.0 240.0.0.0 On-link 192.168.56.1 266
224.0.0.0 240.0.0.0 On-link 192.168.149.1 276
224.0.0.0 240.0.0.0 On-link 192.168.116.1 276
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 10.0.0.144 276
255.255.255.255 255.255.255.255 On-link 192.168.56.1 266 <- used broadcast interface
255.255.255.255 255.255.255.255 On-link 192.168.149.1 276
255.255.255.255 255.255.255.255 On-link 192.168.116.1 276
=======================================================================
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dechamps commented
I think I've seen this before - I distinctly remember a specific game (C&C3 if I remember correctly) showing a host twice in the games list, possibly because of this bug.
It's been many years since I used WinIPBroadcast. I guess it's fair to say the project is abandoned, so don't expect me to investigate this. Feel free to send to share your findings if you find the cause, though.