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Unread postPosted: Wed Mar 28, 2012 1:04 am 
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Joined: Tue Mar 27, 2012 11:01 pm
Posts: 4
Hello,

This is my first post, so please let me know if I omitted some important information.

Problem description: Some devices successfully connect to the WLAN but are not able to go on the internet. The only way to make them work is to ping the gateway at which point they start to work properly.
I have created a script for my linux computers to ping the gateway, but I have to do it manually on my blackberry and android mobiles/tablets.
Note that there are no problems with laptops using windows as operating system and that puzzles me even more.

Here's a sketch of my home network architecture.
Attachment:
homeNetworkArchitecture.png


As my IPCOP server (now version 2.0.4) is an old laptop with an extra PCMCIA NIC, all I can afford is to have a RED/GREEN configuration. Besides, being a home network I do not need/want to isolate the WLAN connected devices from the ones connected to the green network (though I wouldn't mind having an orange network for the web/mail server).

Red
I connect to the internet with a thompson ADSL modem WLAN router with 4 ports configured as bridge and I have a static IP address.
I have configured DNS and default gateway as instructed by my ISP

Green
gateway 192.168.1.1
dhcp range 192.168.1.100 to 192.168.1.200
primary DNS: 192.168.1.1

I have then connected a Linksys ADSL modem WLAN router/4 ports switch to the green switch and configured it at 192.168.1.99
DHCP is disabled and so is the ADSL, so my hope is that it acts as a WLAN router only.

Have I misconfigured something?
As stated at the beginning of the post:
1. once I ping the green default gateway everything works
2. for Windows based devices I do not even need to ping the default gateway. They just work.
3. occasionally, I do not need to ping the gateway at all.

THanks for the help!

MicheleZ


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Unread postPosted: Wed Mar 28, 2012 2:08 am 
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Joined: Wed Apr 28, 2004 1:27 am
Posts: 6778
Location: Beaumont, TX, USA
Is your wireless access point in router mode or access point mode?


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Unread postPosted: Wed Mar 28, 2012 10:41 am 
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Joined: Tue Mar 27, 2012 11:01 pm
Posts: 4
Hello,

thanks for the reply. I need to apologise for my incompetence since I do not know the answer to your question :oops: .

Here's two screenshots of the linksys configuration page. I basically disabled DHCP and NAT, so I guess it is configured as access point but I am not too sure...

Attachment:
Selection_045.png

Attachment:
Selection_044.png


Cheers,

Michele


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Unread postPosted: Thu Mar 29, 2012 2:40 am 
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Joined: Wed Apr 28, 2004 1:27 am
Posts: 6778
Location: Beaumont, TX, USA
You show a wireless router connecting the WLAN to LAN clients. How is it configured?


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Unread postPosted: Sat Mar 31, 2012 11:22 am 
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Joined: Tue Mar 27, 2012 11:01 pm
Posts: 4
Hello,

The wireless router/access point (here's a link to the product page http://homesupport.cisco.com/en-eu/support/gateways/WAG200G) is connected to the ADSL modem (which also has 4 ports and wlan capabilities) with a normal cat5e cable. As wrote in the previous post dhcp is disabled and has a static IP address in my GREEN range (192.168.1.99) which I can use to configure it.

As I tried to explain in the first post WLAN clients authenticate succesfully and obtain an IP address from IPCOP (see IPCOP web interface screenshot showing a laptop at 115, a tablet at 194 and a mobile at 195)
Attachment:
DHCP-leases.png

but while some devices also find their way to the internet, for others I have to ping the gateway and only then they kick into life.

Sorry for not being very accurate... I am very new to networking so I am probably doing something really silly mistakes that you do not expect people to do :-)

Cheers,

Michele


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Unread postPosted: Wed Jan 16, 2013 1:54 am 
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Joined: Wed Apr 28, 2004 1:27 am
Posts: 6778
Location: Beaumont, TX, USA
Sorry for the long delay in response. Based on your above post:
michelez wrote:
The wireless router/access point (here's a link to the product page http://homesupport.cisco.com/en-eu/supp ... ys/WAG200G) is connected to the ADSL modem (which also has 4 ports and wlan capabilities) with a normal cat5e cable.
This doesn't make sense.

On the DHCP clients, what does it show as gateway IP address?


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Unread postPosted: Mon Apr 01, 2013 11:54 pm 
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Joined: Wed Apr 28, 2004 1:27 am
Posts: 6778
Location: Beaumont, TX, USA
@EmmaMorris

Please don't hijack a thread, especially one this old. Start a new thread with the details on your issue.


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Unread postPosted: Wed Apr 03, 2013 8:11 pm 
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Location: Colorado, USA
@ds531

Sorry to disjoint this thread, but @EmmaMorris turned out to be another Spammer. He/She had edited their hijacked post (the one above yours that is now missing) to include spam links. When I deleted the user (even though I said "keep posts"), it didn't.

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For the 2.5^15th time :: Better Details = Better Answers


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