<div class="gmail_quote">On Mon, Mar 9, 2009 at 12:42 PM, Kipton Moravec <<a href="mailto:kip@kdream.com">kip@kdream.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div></div><div class="h5">On Mon, 2009-03-09 at 16:18 +0100, Joep L. Blom wrote: > Kipton Moravec wrote: > > I am planning to use a computer as a gateway/firewall running Ubuntu (or > > another version of Linux). > > > > What is the utility, or service, I need to allow different paths to the > > Internet through this gateway? > > > > For example, the primary path to the Internet is through eth0 the first > > Ethernet card in the computer. However if that gateway is down, then I > > want it to use a second path (or a third if #2 is down also). I can make > > it another card (eth1), or another IP address on the first card. Finally > > if all else fails, I would want it to dial up (or use a serial port) to > > establish a slow but functioning connection. > > > > When the first path is active again it goes back to the original > > configuration. > > > > I want this to happen at the gateway computer, so the users do not see > > anything, except for a reduction in performance if I go to a slower > > connection. > > > > What is this called, and what do I have to read up on? > > It is more than just IP Tables right? > > > > Kip > I would advise to use the LEAF firewall > <a href="http://leaf.sourceforge.net/" target="_blank">http://leaf.sourceforge.net/</a> > > This a standalone distribution and very small. It fits (if you want it > lean) even on a floppy disk but there are distributions for using it > from an CD, USB-stick, etc. > The firewall software is shorewall and it is a real hardware firewall > using 2 ethernet cards and not the pseudo-firewalls as offered for > Windows. I use it for > 8 years and the only time I realise it's there > when we have had a power outage. > Success > Joep > </div></div>I just looked at the Documentation. <a href="http://leaf.sourceforge.net/doc/binstall.html" target="_blank">http://leaf.sourceforge.net/doc/binstall.html</a> Last update 11 May 2003? Can't you recommend something more current? <div class="im"> Kip -- Kipton Moravec AE5IB .- . ..... .. -... ============================================== Four Way Test Is it the Truth? Is it Fair to all concerned? Will it build Goodwill and Better Friendships? Will it be Beneficial to all concerned? - Herbert J Taylor (1932) -- </div><div><div></div><div class="h5">ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </div></div></blockquote></div> I don't want to initiate any discussion, but the best firewall/router option you may have is Pfsense. <a href="http://www.pfsense.org">http://www.pfsense.org</a> It allows you to use Multi-WAN with inbound/outbound load balancing and failover. Cheers. -- "It is human nature to think wisely and act in an absurd fashion." "Todo el desorden del mundo proviene de las profesiones mal o mediocremente servidas"