Dual ISP Connection plus Nat firewall to internat network

We have a cable modem connection (free since we are resellers) and a
partial T1 (also free, we resell for them too ). The partial T1 is
slow but reliable, and the cable modem is fast, but goes down about
one a week. I would like to set up a linux server to take a DHCP IP
from the cable modem, a static IP from the T1 then use a nat firewall
to feed my internal network. There is no way the providers will give
me BGP info, and my boss won't shell out for a hardware solution. So
is this possible, and can someone guide me to a howto?

Todd Jordan <(E-Mail Removed)> wrote:

> We have a cable modem connection (free since we are resellers) and a
> partial T1 (also free, we resell for them too ). The partial T1 is
> slow but reliable, and the cable modem is fast, but goes down about
> one a week. I would like to set up a linux server to take a DHCP IP
> from the cable modem, a static IP from the T1 then use a nat firewall
> to feed my internal network.

What your problem boils down to is "how can I load-balance on multiple
links while having support for fail-over". This problem is most commonly
(as you've guessed) solved with a routing protocol such as BGP or OSPF.

Since you don't have routing information to use, you need to use
something else. You would need to turn to iproute2, I would think. I
suggest you have a look at the Advanced Routing and Traffic Control
HOWTO.

http://lartc.org/howto/

You may also find a help resource at #lartc on irc.oftc.net.

--
Cameron Kerr
(E-Mail Removed) : http://nzgeeks.org/cameron/
Empowered by Perl!

"Todd Jordan" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) om...
> We have a cable modem connection (free since we are resellers) and a
> partial T1 (also free, we resell for them too ). The partial T1 is
> slow but reliable, and the cable modem is fast, but goes down about
> one a week. I would like to set up a linux server to take a DHCP IP
> from the cable modem, a static IP from the T1 then use a nat firewall
> to feed my internal network. There is no way the providers will give
> me BGP info, and my boss won't shell out for a hardware solution. So
> is this possible, and can someone guide me to a howto?
>

Maybe this will help: www.fatpipeinc.com

"JC" <(E-Mail Removed)> wrote in message
news:tcR0c.175993$(E-Mail Removed) om...
> "Todd Jordan" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed) om...
> > We have a cable modem connection (free since we are resellers) and a
> > partial T1 (also free, we resell for them too ). The partial T1 is
> > slow but reliable, and the cable modem is fast, but goes down about
> > one a week. I would like to set up a linux server to take a DHCP IP
> > from the cable modem, a static IP from the T1 then use a nat firewall
> > to feed my internal network. There is no way the providers will give
> > me BGP info, and my boss won't shell out for a hardware solution. So
> > is this possible, and can someone guide me to a howto?
> >
>
> Maybe this will help: www.fatpipeinc.com
>

Oops, sorry. I did catch the boss being able to afford the product you sell
failing weekly on my first read.
snip>"my boss won't shell out for a hardware solution"

Please offer my condolences to your sales people and technical support
department.

Any chance you can show the cost of dealing with the weekly outage as
covering the cost of a hardware solution over 24 -36 months?

JC

"JC" <(E-Mail Removed)> wrote in message
news:tcR0c.175993$(E-Mail Removed) om...
> "Todd Jordan" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed) om...
> > We have a cable modem connection (free since we are resellers) and a
> > partial T1 (also free, we resell for them too ). The partial T1 is
> > slow but reliable, and the cable modem is fast, but goes down about
> > one a week. I would like to set up a linux server to take a DHCP IP
> > from the cable modem, a static IP from the T1 then use a nat firewall
> > to feed my internal network. There is no way the providers will give
> > me BGP info, and my boss won't shell out for a hardware solution. So
> > is this possible, and can someone guide me to a howto?
> >
>
> Maybe this will help: www.fatpipeinc.com
>
>
Oops, sorry. I did catch the boss being able to afford the product you sell
failing weekly on my first read.
snip>"my boss won't shell out for a hardware solution"

Please offer my condolences to your sales people and technical support
department.

Any chance you can show the cost of dealing with the weekly outage as
covering the cost of a hardware solution over 24 -36 months?

JC