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Sorry for the delay in my response.
No, I am not runnig the VMs locally. These VMs are being run and
managed in a lab that I don't have access to, but I am expected to use
VMs in the lab for development and testing on a new project.
I have one physical network adapter in my computer and several virtual
adapters since I do have VMware Workstation and Virtual Box installed.
The IP address of the physical adapter is a static IP address set to
10.3.20.159 with /24 subnet mask. The VM that I've been trying to
connect to has IP address 10.3.147.100 and /24 subnet mask. Running
XWin -from 10.3.20.159 -query 10.3.147.100
doesn't work. A blank window opens and eventually closes and re-opens.
This goes on indefinitely. In the attached Wireshark trace, you can
see a cycle of query-willing-request-request...-query-willing-request-request
after running this command in Cygwin:
No. Time Source Destination Protocol Info
3219 253.037685 10.3.20.159 10.3.147.100 XDMCP Query
No. Time Source Destination Protocol Info
3220 253.043332 10.3.147.100 10.3.20.159 XDMCP Willing
No. Time Source Destination Protocol Info
3331 254.061501 10.3.20.159 10.3.147.100 XDMCP Request
No. Time Source Destination Protocol Info
3361 257.044353 10.3.20.159 10.3.147.100 XDMCP Request
[...]
I've also attached a Wireshark trace capturing when using XLaunch to
start an XDMCP session using Xming. In this trace, you can see the
expected query-willing-request-accept sequence:
No. Time Source Destination Protocol Info
129 14.553230 10.3.20.159 10.3.147.100 XDMCP Query
No. Time Source Destination Protocol Info
130 14.554923 10.3.147.100 10.3.20.159 XDMCP Willing
No. Time Source Destination Protocol Info
135 15.226412 10.3.20.159 10.3.147.100 XDMCP Request
No. Time Source Destination Protocol Info
136 15.231235 10.3.147.100 10.3.20.159 XDMCP Accept
Here is the output of ipconfig:
C:\Users\alpokluda>ipconfig
Windows IP Configuration
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::71ea:6924:9397:cfc5%14
IPv4 Address. . . . . . . . . . . : 10.3.20.159
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.3.20.1
Ethernet adapter VMware Network Adapter VMnet1:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::39b9:7291:332c:73ee%16
IPv4 Address. . . . . . . . . . . : 192.168.245.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
Ethernet adapter VMware Network Adapter VMnet8:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::91b6:e77b:7aef:6d88%18
IPv4 Address. . . . . . . . . . . : 192.168.127.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
Ethernet adapter VirtualBox Host-Only Network:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::7cf6:24ee:7c05:7c06%22
IPv4 Address. . . . . . . . . . . : 192.168.68.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
Tunnel adapter isatap.{9D67124F-C8D9-45C5-9AC5-FCF5D2D8625F}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Tunnel adapter isatap.{D64E1692-0777-4BA9-AD59-6BC4B536D5AB}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Tunnel adapter isatap.{95AFDF32-DF73-4F97-A9E6-122D78033AED}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Tunnel adapter isatap.{31D1B58C-F013-4228-B2B6-C75660B9C6AA}:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
and 'route print':
C:\Users\alpokluda>route print
===========================================================================
Interface List
14...1c c1 de 5d bb 1b ......Intel(R) 82578DM Gigabit Network Connection
16...00 50 56 c0 00 01 ......VMware Virtual Ethernet Adapter for VMnet1
18...00 50 56 c0 00 08 ......VMware Virtual Ethernet Adapter for VMnet8
22...08 00 27 00 58 7b ......VirtualBox Host-Only Ethernet Adapter
1...........................Software Loopback Interface 1
24...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
17...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
19...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
21...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 10.3.20.1 10.3.20.159 266
10.3.20.0 255.255.255.0 On-link 10.3.20.159 266
10.3.20.159 255.255.255.255 On-link 10.3.20.159 266
10.3.20.255 255.255.255.255 On-link 10.3.20.159 266
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
192.168.68.0 255.255.255.0 On-link 192.168.68.1 276
192.168.68.1 255.255.255.255 On-link 192.168.68.1 276
192.168.68.255 255.255.255.255 On-link 192.168.68.1 276
192.168.127.0 255.255.255.0 On-link 192.168.127.1 276
192.168.127.1 255.255.255.255 On-link 192.168.127.1 276
192.168.127.255 255.255.255.255 On-link 192.168.127.1 276
192.168.245.0 255.255.255.0 On-link 192.168.245.1 276
192.168.245.1 255.255.255.255 On-link 192.168.245.1 276
192.168.245.255 255.255.255.255 On-link 192.168.245.1 276
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 10.3.20.159 266
224.0.0.0 240.0.0.0 On-link 192.168.68.1 276
224.0.0.0 240.0.0.0 On-link 192.168.245.1 276
224.0.0.0 240.0.0.0 On-link 192.168.127.1 276
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 10.3.20.159 266
255.255.255.255 255.255.255.255 On-link 192.168.68.1 276
255.255.255.255 255.255.255.255 On-link 192.168.245.1 276
255.255.255.255 255.255.255.255 On-link 192.168.127.1 276
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 10.3.20.1 Default
===========================================================================
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 306 ::1/128 On-link
14 266 fe80::/64 On-link
22 276 fe80::/64 On-link
16 276 fe80::/64 On-link
18 276 fe80::/64 On-link
16 276 fe80::39b9:7291:332c:73ee/128
On-link
14 266 fe80::71ea:6924:9397:cfc5/128
On-link
22 276 fe80::7cf6:24ee:7c05:7c06/128
On-link
18 276 fe80::91b6:e77b:7aef:6d88/128
On-link
1 306 ff00::/8 On-link
14 266 ff00::/8 On-link
22 276 ff00::/8 On-link
16 276 ff00::/8 On-link
18 276 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
Please let me know if you need more information.
On Wed, Feb 2, 2011 at 11:00 AM, Jon TURNEY <jon.turney@dronecode.org.uk> wrote:
> On 28/01/2011 20:23, Alexander Pokluda wrote:
>> The Windows PC that I'm using is on a different subnet from the VMs
>> that I need to connect to (10.3.20.159/24), so does that mean it's not
>> possible to use Cygwin/X in this case? (Changing either subnet is not
>> an option).
>
> Ah, I had assumed that you were running the VMs locally with some form of
> virtual networking.
>
> It certainly should be possible to configure XWin to work in your case.
>
> If you have multiple network interfaces on your PC, then it's probably just a
> question of using the -from option to ensure traffic is sent with the correct
> source address.
>
> If that doesn't fix it, perhaps you could provide a wireshark trace of the
> connection attempt and some more details of the networking configuration (e.g.
> output of 'ipconfig' and 'route print')
>
>> On Fri, Jan 28, 2011 at 3:16 PM, Jon TURNEY <jon.turney@dronecode.org.uk> wrote:
>>> On 28/01/2011 19:19, Alexander Pokluda wrote:
>>>> I've been trying for a while to get Cygwin/X working with XDMCP for
>>>> quite a while without any success; however, I am able to conenct
>>>> without any any problem using Xming 6.9. I'm using a Windows 7 PC to
>>>> connect to a different Linux VMs running CentOS 5.5. After starting
>>>> XWin from the command line (either directly or using startxdmcp.bat),
>>>> a window opens up that contains nothing but black. At first when I
>>>> move the cursor over the winodow, it just disappears but after a
>>>> while, the cursor will appear as an X and the following shows up in
>>>> the log file:
>>>>
>>>> [266377.900] winProcEstablishConnection - Hello
>>>> [266377.900] winProcEstablishConnection - ProcEstablishConnection
>>>> failed, bailing.
>>>> [266385.653] winAboutDlgProc - WM_COMMAND - IDOK or IDCANCEL
>>>> [266489.784] XDM: too many retransmissions, declaring session dead
>>>>
>>>> Any help would be greatly appreciated. I've included part of the log
>>>> from one attempt to connect to one of the CentOS 5.5 VMs that I can
>>>> connect to with Xming using XDMCP.
>>>
>>>> [266616.722] XDM: too many retransmissions, declaring session dead
>>>
>>> Possibly you need to use -query 10.3.147.100 -from <corresponding local IP for
>>> the subnet containing that IP address>
>>>
>>> Xming has a patch applied which adds some more intelligence to the way the
>>> local IP address is chosen, but unfortunately that is written to use the
>>> winsock API directly, so can't be used directly in XWin.
>
> --
> Jon TURNEY
> Volunteer Cygwin/X X Server maintainer
>
Attachment:
Xming XDMCP Connection Wireshark Trace.txt
Description: Text document
Attachment:
XWin XDMCP Connection Wireshark Trace.txt
Description: Text document
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