<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Not sure if you are now using the SpeedStream or a new one. Personnally I had a lot easier time as soon as I dropped the Speedstream and used another one. The speedstream is a very cheap unit made eons ago and with custom firmware for Bigpond and others. No manual and most likely not much testing of the custom firmware outside a set config. It seems too that you got your config to work with another modem so I would suggest you use another modem (anyway).<div><br></div><div>Fred<br><br>--- On <b>Thu, 3/24/11, Bret Busby <i><bret.busby@gmail.com></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Bret Busby <bret.busby@gmail.com><br>Subject: Re: [plug] Query about gateway computer settings<br>To: plug@plug.org.au<br>Date: Thursday, March 24, 2011, 12:07 PM<br><br><div
class="plainMail">On 24/03/2011, Jon L Miller <<a ymailto="mailto:jlmiller@mmtnetworks.com.au" href="/mc/compose?to=jlmiller@mmtnetworks.com.au">jlmiller@mmtnetworks.com.au</a>> wrote:<br>> See below<br>><br><br>> The LAN uses the IP address range 192.x.x.x, and a LAN (?) involving<br>> the gateway computer NIC that is interfaced to the modem, and a couple<br>> of computers, via a switch, and the ADSL modem, uses the 10.x.x.x IP<br>> address range.<br>><br>> Jlm> so what you are saying is that you cannot ping the 10.x.x.x network<br>> from the 192.x.x.x network? If this is true you need to check your firewall<br>> and make sure you are routing packets from the 192.x.x.x to 10.x.x.x.<br>><br><br>No.<br><br>The LAN NIC on the gateway computer, is IP adress 192.x.x.x, and the<br>NIC on the gateway computer, is IP address 10.x.x.x, and I can ping<br>both, successfully, from my workstation.<br><br>The ADSL modem is
also IP address 10.x.x.x (different IP address, but<br>same range as the NIC that interfaces to it on the gateway computer),<br>and I cannot ping that from my workstation.<br><br>I do not have any firewall set up on the gateway computer.<br><br>The only firewall that exists, is one on the ADSL modem/router, if<br>that is set up, and I understand that the default setting for that, is<br>that it stops unsolicited packets from the Internet, and does not<br>restrict packets or requests from our side of the modem/router..<br><br>> The ADSL modem is set up for DHCP, and I found in the Admin Guide for<br>> the ADSL modem (the router one), a facility for reserving specified IP<br>> addresses, so that it is (to me) a bit like having static IP addresses<br>> within a DHCP facility.<br>><br>><br>> So, I have a reserved IP address for the NIC on the gateway computer,<br>> that interfaces with the modem, and I have that IP address
specified<br>> as a static IP address in the NIC configuration of the gateway<br>> computer.<br>><br>> I have got the gateway computer set up, so that I can go out on the<br>> Internet, via the ADSL modem/router, and I have used that to perform a<br>> system update on the gateway computer.<br>><br>> On both NIC's on the gateway computer, I have the IP address of the<br>> ADSL modem, specified as the IP address of the DNS server (using<br>> System -> Network -> DNS).<br>><br>> Jlm> why are you using the same ip address on both NIC's? If the gateway<br>> computer only has 2 nics, then one needs to be configured for internal LAN<br>> 192.x.x.x and connected to a switch or hub and the other for the external<br>> LAN 10.x.x.x and this is connected to the adsl modem. Routing will need to<br>> be setup as a static route from the 192.x.x.x to 10.x.x.x.<br>><br><br>I had stated that the two NIC's
on the gateway computer, have<br>different IP addreses; the one interfaced to the LAN, has IP address<br>in the range 192.x.x.x, the same range as the LAN, and the one<br>interfaced to the ADSL modem/router, is in the range 10.x.x.x, the<br>same range as the ADSL modem/router.<br><br>It is the address for the DNS server, that is set the same for both NIC's<br><br>><br>><br>> On my workstation, I have tried using the IP address of the LAN NIC on<br>> the gateway computer, as the DNS server, and I have tried using the IP<br>> address of the NIC on the gateway computer, that interfaces to the<br>> ADSL modem, as the DNS server, and I have tried using the IP address<br>> of the ADSL modem, as the DNS server, but I cannot get to the modem<br>> (any of pinging the modem, or the web interface for the modem, or,<br>> going past the modem, out onto the Internet), from my workstation.<br>><br>> Jlm> DNS services will depends on
if you are exchanging information upstream<br>> or just within the local LAN. If using just the local LAN the DNS server<br>> can and should reside on the 192.x.x.x ip space, whereas if the DNS data is<br>> being exchanged with an upstream DNS master server then the put the ip<br>> address of the DNS server on the 10.x.x.x network and do a NAT for 10.x.x.x<br>> to the ADSL modem.<br>><br><br>-- <br>Bret Busby<br>Armadale<br>West Australia<br>..............<br><br>"So once you do know what the question actually is,<br> you'll know what the answer means."<br>- Deep Thought,<br> Chapter 28 of Book 1 of<br> "The Hitchhiker's Guide to the Galaxy:<br> A Trilogy In Four Parts",<br> written by Douglas Adams,<br> published by Pan Books, 1992<br><br>....................................................<br>_______________________________________________<br>PLUG discussion list: <a ymailto="mailto:plug@plug.org.au"
href="/mc/compose?to=plug@plug.org.au">plug@plug.org.au</a><br><a href="http://lists.plug.org.au/mailman/listinfo/plug" target="_blank">http://lists.plug.org.au/mailman/listinfo/plug</a><br>Committee e-mail: <a ymailto="mailto:committee@plug.linux.org.au" href="/mc/compose?to=committee@plug.linux.org.au">committee@plug.linux.org.au</a><br></div></blockquote></div></td></tr></table>