is there anything in the firmware that would block ping to wireless notebook?

[Dapper]

Setup:
Windows 7 x64 Ultimate desktop hard wired to Asus WL500gp router (WL500gpv2-1.9.2.7-d-r1445 firmware)
Several Bridged VirtualBox VM's running XP, 7, ubuntu server 10.04, Mint 9 and SuSE 11.2
Win XP Pro SP3 notebook with D-Link Airplus wireless network card.

No firewall or other security software currently running on either platform (at least for the duration of the test)

Situation:
Router is acting DHCP server
Clients are receiving correct addresses and additional parameters
Internet connectivity is available from all clients
Windows 7 sharing is set to Network type = work (not home group)
NetBT is disabled on all clients using smb over TCP

What I can do:
I can ping the router and internet addresses from the wireless XP notebook
I can ping the Win 7 desktop and any VM from the XP wireless notebook
I can ping all devices from the router
All VM's and 7 can ping each other and the router as well as Internet addresses

What I can't do:
I cannot ping the XP wireless notebook from either the Win 7 desktop or the VM's; it always returns a destination host unreachable error. Tracert resolves the name or the XP notebook but also returns a destination host unreachable.

From the above it would seem that something is blocking connectivity in a single direction (from the Win 7 box to the Win XP notebook) only but the router can ping the XP notebook.

Some fresh input would be most welcome, as this is beginning to drive me batty.

Thanks

[wpte]

If "Set AP Isolated?" is set to yes in the wireless > advanced page, it could be a reason...

Are you pinging a hostname instead of an IP? are you using an other DNS server on the router than just auto?

otherwise I wouldn't have a clue

[Dapper]

Thanks for the reply.

"Set AP Isolated?" was set to yes, but I changed it to No, save and restarted the router, but I still am unable to ping the notebook.

Earlier I 'hardwired' the notebook to the router and I was able to ping from the desktop successfully, so it's obviously a wireless issue

I am using the ip address and DNS is set to Auto

[avberk]

Can you reach a share created on the win xp machine?

[Dapper]

When the notebook is connected via wireless, it's not visible at all from the desktop. When connected via cable, ping and shares are available.

As I mentioned in my earlier post, I can ping the notebook from the router when it's connected via wireless.

If it helps, here are the wireless details:

Wireless - Interface
SSID: *********
Channel: **
Wireless Mode: Auto - 54g Protection = No
Authentication Method: WPA2 - Personal
WPA Encryption: AES

Wireless - Bridge
AP Mode: AP - Only
Channel: **
Connect to APs in Remote Bridge List? No
Allow anonymous? No

Wireless - Access Control
MAC Access Mode: Disabled

Wireless - RADIUS Setting
Not Used

Wireless - Advanced
Enable AfterBurner? Disabled
Hide SSID: Yes
Set AP Isolated? No
Data Rate(Mbps): Auto
Multicast Rate(Mbps): 11
Basic Rate Set: Default
Regulatory Mode: Off
Fragmentation Threshold: 2346
RTS Threshold: 2347
DTIM Interval: 1
Beacon Interval: 100
Enable Frame Bursting? Disabled
Extended Mode: AP or WDS
Enable Radio? Yes
Date to Enable Radio: All

Time of Day to Enable Radio: All
Radio Power: 17
Enable WMM? Disabled
Enable WMM No-Acknowledgement? Disabled

I tried changing Extended Mode in Advanced settings to Ethernet Bridge but I wasn't able to connect to the router from the notebook after doing so.

One other thing, after some further playing today I found if I pinged the desktop from the notebook and then immediately pinged the notebook from the desktop, it worked, well, for 2 minutes, the reverted back to destination host unreachable. I assume this is an affect of a cache entry, arp cache maybe? Whatever, at least it proves the notbook is reachable.

Thanks

[Tamadite]

Does your laptop get ip on the wireless interface? If so can you publish the ip route configuration (route print) on the laptop?

[Dapper]

Does your laptop get ip on the wireless interface? If so can you publish the ip route configuration (route print) on the laptop?

Hi Tamadite.

Here are the route prints from the notebook and the desktop.

Just a reminder, I have full network/Internet access from the notebook, but I cannot see the notebook, at all, from the desktop, unless it's hardwired, in which case everything works as it should.

Notebook:

Interface List
0x1 ........................... MS TCP Loopback interface
0x30002 ...00 0f 3d 58 42 2e ...... D-Link AirPlus G+ DWL-G650+ Wireless Cardbus Adapter - Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0    192.168.240.1   192.168.240.3	  25
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1	  1
    192.168.240.0  255.255.255.240    192.168.240.3   192.168.240.3	  25
    192.168.240.3  255.255.255.255        127.0.0.1       127.0.0.1	  25
  192.168.240.255  255.255.255.255    192.168.240.3   192.168.240.3	  25
        224.0.0.0        240.0.0.0    192.168.240.3   192.168.240.3	  25
  255.255.255.255  255.255.255.255    192.168.240.3   192.168.240.3	  1
Default Gateway:     192.168.240.1
===========================================================================
Persistent Routes:
  None

Desktop:

===========================================================================
Interface List
 11...00 1d 7d 04 77 6b ......Realtek PCIe GBE Family Controller
  1...........................Software Loopback Interface 1
 12...00 00 00 00 00 00 00 e0 Microsoft 6to4 Adapter
 13...00 00 00 00 00 00 00 e0 Microsoft Direct Point-to-point Adapater
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0    192.168.240.1    192.168.240.2     20
        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
    192.168.240.0  255.255.255.240         On-link     192.168.240.2    276
    192.168.240.2  255.255.255.255         On-link     192.168.240.2    276
   192.168.240.15  255.255.255.255         On-link     192.168.240.2    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     192.168.240.2    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     192.168.240.2    276
===========================================================================
Persistent Routes:
  None

IPv6 Route Table
===========================================================================
Active Routes:
 If Metric Network Destination      Gateway
  1    306 ::1/128                  On-link
 11    276 fe80::/64                On-link
 11    276 fe80::7191:6bd1:e5fa:58af/128
                                    On-link
  1    306 ff00::/8                 On-link
 11    276 ff00::/8                 On-link
===========================================================================
Persistent Routes:
 If Metric Network Destination      Gateway
  0 4294967295 ::/0                     2001:470:1f0a:823::1
===========================================================================

I hope this helps, I'm becoming certifiable trying to solve this

[avberk]

Does unhiding your SSID make a difference?

[Dapper]

Unfortunately, unhiding the SSID makes no difference

Thanks

[Tamadite]

I have full network/Internet access from the notebook, but I cannot see the notebook, at all, from the desktop, unless it's hardwired, in which case everything works as it should.

Then you should not search for the solution on the router but on the notebook. Packages on the same IP segement do not get routed. If the notebook is using MS-Windows check the firewall; I would first try this by deactivating the firewall on the notebook.

[Dapper]

Then you should not search for the solution on the router but on the notebook. Packages on the same IP segement do not get routed. If the notebook is using MS-Windows check the firewall; I would first try this by deactivating the firewall on the notebook.

Thanks for the reply, Tamadite. Unfortunately, there is no firewall on the notebook. As I mentioned in my initial post, all security software was eliminated for the purposes of testing.

Perhaps I made myself a little less than clear when I said "hardwired". I should have qualified that statement by saying hardwired to the router, i.e. the desktop and the notbook are sharing the switch.

I confess I am new to wireless networking, it's not something I've ever needed before and in all likelihood I am doing something wrong. I just can't see where the problem would be, except with the wireless configuration, if, when using wireless there is no communication, yet when cabled there is. The only thing that changes is the communication type/method.

Edit:

Some additional info:

I connected the notebook to the router via both wireless and wired, when I attempt to ping the wireless address it fails when I ping the wired address it succeeds:

Windows IP Configuration
        Host Name . . . . . . . . . . . . : Voyager
        Primary Dns Suffix  . . . . . . . : vladlink.lan
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : vladlink.lan

Ethernet adapter Беспроводное сетевое соединение:
        Connection-specific DNS Suffix  . : 
        Description . . . . . . . . . . . : D-Link AirPlus G+ DWL-G650+ Wireless Cardbus Adapter
        Physical Address. . . . . . . . . : 00-0F-3D-58-42-2E
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.240.3
        Subnet Mask . . . . . . . . . . . : 255.255.255.240
        Default Gateway . . . . . . . . . : 192.168.240.1
        DHCP Server . . . . . . . . . . . : 192.168.240.1
        DNS Servers . . . . . . . . . . . : 192.168.240.1
        Lease Obtained. . . . . . . . . . : 12 мая 2010 г. 16:49:39
        Lease Expires . . . . . . . . . . : 13 мая 2010 г. 16:49:39

Ethernet adapter Local Area Connection:
        Connection-specific DNS Suffix  . : 
        Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast Ethernet NIC
        Physical Address. . . . . . . . . : 00-11-D8-2D-AD-49
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.240.6
        Subnet Mask . . . . . . . . . . . : 255.255.255.240
        Default Gateway . . . . . . . . . : 192.168.240.1
        DHCP Server . . . . . . . . . . . : 192.168.240.1
        DNS Servers . . . . . . . . . . . : 192.168.240.1
        Lease Obtained. . . . . . . . . . : 12 мая 2010 г. 18:46:56
        Lease Expires . . . . . . . . . . : 13 мая 2010 г. 18:46:56

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x40002 ...00 0f 3d 58 42 2e ...... D-Link AirPlus G+ DWL-G650+ Wireless Cardbus Adapter - Packet Scheduler Miniport
0x40004 ...00 11 d8 2d ad 49 ...... Realtek RTL8139 Family PCI Fast Ethernet NIC - Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0    192.168.240.1   192.168.240.3	  25
          0.0.0.0          0.0.0.0    192.168.240.1   192.168.240.6	  20
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1	  1
    192.168.240.0  255.255.255.240    192.168.240.3   192.168.240.3	  25
    192.168.240.0  255.255.255.240    192.168.240.6   192.168.240.6	  20
    192.168.240.3  255.255.255.255        127.0.0.1       127.0.0.1	  25
    192.168.240.6  255.255.255.255        127.0.0.1       127.0.0.1	  20
  192.168.240.255  255.255.255.255    192.168.240.3   192.168.240.3	  25
  192.168.240.255  255.255.255.255    192.168.240.6   192.168.240.6	  20
        224.0.0.0        240.0.0.0    192.168.240.3   192.168.240.3	  25
        224.0.0.0        240.0.0.0    192.168.240.6   192.168.240.6	  20
  255.255.255.255  255.255.255.255    192.168.240.3   192.168.240.3	  1
  255.255.255.255  255.255.255.255    192.168.240.6   192.168.240.6	  1
Default Gateway:     192.168.240.1
===========================================================================
Persistent Routes:
  None

[Tamadite]

only but the router can ping the XP notebook.

Do it again as you showed on the last attached picture pinging both interfaces on the laptop (from 192.168.240.2?) and after that show the arp table of the host you are pinging from.

You are using a not common mask (255.255.255.240). Just to avoid odd environments, set mask 255.255.255.0 and check all hosts get the new mask including the router. "destination host unreachable" normally indicates "no route" therefore if all hosts are on the same IP segment no packet is to be routed.

[Dapper]

Hi Tamadite.

I made the changes suggested in your last post but was still unable to connect. Eventually, I ran with the 'Factory Defaults' option, at which point everything started working!

I guess something in the config I had created was borked, unfortunately, I doubt I'll ever know for sure what

Thank you for all your patience and help, it's really very much appreciated