[Cialug] Firewall question

[Tom Sellers]

Each wireless router acts as its own DHCP server for it's network segment.
One is on network 192.168.9.0 and the other is on 192.168.1.0.  Even though
I insert my local internet provider's DNS server IP addresses the clients
seem to end up with the DNS identified as 192.168.1.1 or 192.168.9.1
depending on the network segment.  Not sure that I understand that but it
works so I don't worry about it.  It has been that way with my network as
long as I can remember.

The route seems to point back to the 192.168.9.1 or 192.168.1.1 address.
Here is a screen shot of the route of this machine.



On Wed, Mar 8, 2017 at 9:35 AM, Sean Flattery <sean.r.flattery at gmail.com>
wrote:

> Which system is your DHCP server, and what default route is it telling to
> DHCP clients?  Make sure you don't have both your firewall and wireless
> router handing out DHCP.
>
> ========================================
>
> *Tom Sellers*
>     tsellers2009 at gmail.com
> <cialug%40cialug.org?Subject=Re%3A%20%5BCialug%5D%
> 20Firewall%20question&In-Reply-To=%3CCAGMb6GSE85DusNvm_
> -V7ryQQ%2Bkdwx_O2%2Bp8Y2X_SwkbWRcOTLQ%40mail.gmail.com%3E>
>     *Tue Mar  7 13:36:49 CST 2017*
> ----------------
>
> I will try to get more detailed later (busy today) but the traceroute
> command comes back with two lines.  both reference the base IP of the
> router which is 192.168.9.1.  I agree that the problem is with not being
> able to get to the internal firewall side which is 192.168.9.254 fixed IP.
> If I am logged into the firewall machine I can ping by IP or name.
>
> ie: ping 8.8.8.8 with a valid response  (also)
>      ping www.google.com resolves and .properly as well.
>
> I can ssh to the firewall at 192.168.9.254 without any issue and perform
> the above commands without issue.
>
> >*From the local machine terminal window both commands fail.
> *
> Right now the wireless access point does not have an internet connection.
> Just trying to route through the firewall to the existing network which
> works fine.  When I tried to connect this wireless device to my cable modem
> directly I crashed the whole network.  Firewall did not work.
> _______________________________________________
> Cialug mailing list
> Cialug at cialug.org
> http://cialug.org/mailman/listinfo/cialug
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screenshot from 2017-03-08 10:16:13.png
Type: image/png
Size: 50069 bytes
Desc: not available
URL: <http://cialug.org/pipermail/cialug/attachments/20170308/63e8735e/attachment-0001.png>