Backup paths to the internet.

[Victor Padro]

On Mon, Mar 9, 2009 at 12:42 PM, Kipton Moravec <kip at kdream.com> wrote:

> 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
> > http://leaf.sourceforge.net/
> >
> > 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
> >
>
> I just looked at the Documentation.
> http://leaf.sourceforge.net/doc/binstall.html
>
> Last update 11 May 2003?
>
> Can't you recommend something more current?
>
> Kip
>
>
> --
>
>
> Kipton Moravec AE5IB .- . ..... .. -...
> ==============================================
> Four Way Test
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>
>
>
>
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I don't want to initiate any discussion, but the best firewall/router option
you may have is Pfsense.
http://www.pfsense.org
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"
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