Re: Advice on multiple interfaces

Chris Mason (Lists)
2006-02-17T20:40:00Z

> Why don''t you start with posting what you propose to run in the
> configuration files and some clearly stated objectives?

I''m really looking for more general observations and experiences on the
kind of installation I am attempting and listed at the start of the post
before I get into specific configurations. If  I don''t know which
approach is the right one there''s little point editing the
configuration
files.
I will elaborate below.
>
> Just a heads up, having more that one dynamic ip address could be
> problematic.
Although the CATV feed ip is dynamic once the IP has been obtained via
dhcp the techs at Cable TV are reserving it for me and binding it to the
MAC address, so I am treating is as static. This is because their system
does not allow them to provision a static IP.


The Setup
LAN - 192.168.0.0/24 - guest and office worker computers, servers.
ISP1: Static IP, Fixed guaranteed bandwidth, expensive, want to keep for
VOIP.
ISP2: ADSL, dhcp, cheap, want to route outgoing browsing traffic so
guests and staff do not load ISP1.
ISP3: Cable internet, reserved IP, cheap, lousy quality, want to serve
internal webcam on it.

The Objectives:
Incorporate three ISP feeds to the firewall.
Allow no browsing traffic over ISP1 to conserve the bandwidth
Install Squid proxy and route Squid traffic through ISP2
Traffic shape or QOS

Note:  dynamic load balancing is not an objective, static load balancing
is preferred.

The issues
Should I use the providers configuration options or is that for load
balancing similar feeds?
Can I have a default route through ISP1 then route specific traffic,
i.e. http, out specific interfaces, is that a better approach than the
providers file?

General approach questions.

--
Chris Mason
NetConcepts