On 03/17/2011 07:10 PM, Tom Eastep wrote:
> On 3/17/11 4:38 PM, Jay Ridgley wrote:
>
>>
>> OLD runs Ubuntu 8.04 LTS and NEW runs Ubuntu 10.04.2 LTS Shorewall
>> versions are 4.0 and 4.4 respectively.
>>
>> Both systems have three interfaces(net, local and wireless).
>>
>> Here is what is happening I can ping -c3 yahoo.com no problem.
>
>  From where? Firewall? System inside the firewall? System in your
> neighbor's garage?

I am sorry, the problem manifests itself on my laptop which has a wireless 
connection to my local network. It is from within home (my chair in the living 
room). The remainder of my systems are all wired. Those systems do not appear 
to 
be affected, only the laptop.
>
>> I can ping inside my local net no problem. I have an IP address that
>> was assigned via dhclinet (it is as expected).
>
> *You* do not have an IP address. Some computer that you are using has an
> IP address. Again, inside the firewall?

I was referring to my laptop once again. The IP address is the one obtained 
through the negotiation with the access point from the firewall system. Yes, it 
is inside the firewall.

>
>> I bring up my browser and it fails to properly load.
>
> The binary fails to run or your home page cannot be loaded.

The home page, stops loading. The binary is still running. It eventually 
displays an error screen that states it could not connect to the site.
>
>> My routes look OK and my IP address is still there. I can no longer
>> ping my fierewall.
>
> You could ping the firewall before you started your browser?
>
Yes, I am able to ping the firewall before I start the browser. In fact, I am 
able to obtain an SSH connection the the firewall.
>>
>> I have checked my configuration files /etc/dhcp3/dhcpd.conf
>> /etc/dhcp3/dhclient.conf and /etc/interfaces are the same (I used
>> diff on them). I am going to do the same for each of the
>> configuration file in Shorewall before I send this. There were only
>> the differences that were expected.
>
> Did you go through the 4.0->4.4 migration document
> (http://www.shorewall.net/LennyToSqueeze.html) and assess each potential
> problem against your configuration?

Yes, I did make some corrections based upon that review, however, there were 
only two or three of them.
>
>>
>> PLEASE take a peek at it and let me know if you see anything amiss.
>>
>> If you need anything else please let know.
>>
>
> There seem to be lots of connections passing through the Shorewall box?
> Is this problem limited to you (your personal system) or are all users
> on the LAN or wireless networks affected?

Are the number of these connections abnormal? My wireless connection should 
only 
be coming from my 192.168.139.32/28 subnet the allowed hosts are within 
192.168.139.35 through 192.168.139.39 range. I am including the entry from 
/etc/dhcp3/dhcpd.conf for both the wireless and wired subnets below:


# DHCP subnet a wireless Access Point for eth2

subnet 192.168.139.32 netmask 255.255.255.240 {
     range 192.168.139.35 192.168.139.39;
        option routers 192.168.139.34;
        option subnet-mask 255.255.255.240;
        option broadcast-address 192.168.139.47;
        option domain-name-servers 24.93.41.127, 24.93.41.128;
        option ip-forwarding off;
        default-lease-time 21600;
        max-lease-time 43200;
}

# Include a static ip address for the Access Point (per vendor)

host bear_den {
        hardware ethernet 00:11:50:45:7A:42;
        fixed-address 192.168.139.33;
}

All other connections are wired and within the range 192.168.139.0/28

subnet 192.168.139.0 netmask 255.255.255.240 {
           option routers 192.168.139.2;
           option subnet-mask 255.255.255.240;
           option domain-name-servers 24.93.41.127, 24.93.41.128;
           option ip-forwarding off;
}

These are the same on both the OLD and NEW systems.


My firewall system is utilized by all systems within my home. Normally there 
are 
a total of four actual systems (including my laptop) in addition to a network 
drive and an access point. They are all normally up 7x24. Other than the laptop 
all are wired; except for the access point, of course, which provides wireless 
connections.

My personal laptop is currently the only wireless enabled system on my network 
and it is the only one that is having the problem. It works just fine using the 
OLD system...

>
> -Tom
>

Tom,

Thank you very much. I apologize for leaving out the details.

I eventually want to be able to provide wireless connections for my son and my 
three grandchildren when the visit and bring their own computers with them.

Regards,
Jay

-- 


Jay Ridgley
[email protected]
Registered Linux User ID - 9115
Registered Ubuntu User ID - 23320

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