[squid-users] Proxy to access two network links?

Hello all, a question about splitting a lan between
two different network links.
At this moment we connect the Dmz & Lan of our network
to a 2 Mbit link isp via a
FreeBSD bridge/Firewall & Nat/Firewall:

      190.20.20.1
Isp--------Router---FBSD
    2Mbit | Bridge----DMZ
              | (190.20.20/128)
              |
              |____ FBSD
                    NAT----Linux
                           Proxy------LAN
                           squid (192.168.1.x)

The 2Mbit link is free since reaced some amount of
traffic, then we pay
for the exceeding traffic.
Our managers wants to buy a second link, adsl, slower
but cheaper to use in addition to
the 2Mbit link to reduce the costs when the 2Mbit
reaces the traffic limit.
Some users can still use the 2 Mbit and the others
goes on the adsl based on something
like acl.
And if the 2Mbit goes down, there is the adsl who can
take care of the Dmz as a backup.
So to have this setup:

      190.20.20.1
Isp1--------RouterA---FBSD
    2Mbit | Bridge----DMZ
              | (190.20.20/128)
              |
              |____ FBSD
                    NAT--Linux
                         Proxy---LAN
                                (192.168.1.x)

        212.20.20.1
Isp2-----RouterB--------?????

Is there a way to do such a thing?
We thought about proxy(squid on Linux) to give
different gateways at the Lan based on acls,some can
go on the isp1, some on the isp2.
Any suggestion would be appreciated.
Thanks

______________________________________________________________________

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Received on Mon Jan 28 2002 - 06:36:51 MST