Hello,
I am thinking of connecting a Shorewall Firewall to
three different ISPs and load balancing some but not
all connections.
Just asking for some advice for now.
Here''s the network layout:
ISP1 ISP2 ISP3
ADSL Router 1 ADSL Router 2 ADSL Router 3
| | |
FW:eth0 FW:eth1 FW:eth2
--------------------------------------------
FW:eth3
|
SWITCH:LAN:192.168.1.0/24
(eventually may add FW:eth4 as DMZ but not yet)
Each ISP provides 1 static public IP so let
eth0:WAN1
eth1:WAN2
eth2:WAN3
eth3:192.168.1.254
I would like to force traffic as so:
* POP3, SMTP, FTP: ISP1 only
* HTTP, HTTPS: load-balanced ISP1, ISP2, ISP3 EXCEPT
for 192.168.1.23 and 192.168.1.36 which should ALWAYS
use ISP2 exclusively
* IPSEC, PPTP: load-balanced ISP2, ISP3
Note that I would prefer keeping all LAN hosts on the
same subnet.
Do you think this is possible? Any suggestions, links,
or guidelines as to how I can tackle the problem?
(besides FAQ 32)
Regards,
Vieri
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