I've been through the past messaages and basically found that Astaro doesn't appear to support load balancing traffic out multiple WAN ports at this time.. I have an idear for a workaround, and wonder if it will work or has been tried. looking for feedback/discussion.
I have a T1 with a /25 public block with ISP "A" and a DSL connection with a static IP with ISP "B." I am running ASL 4.015. The ASL server has 16 ethernet ports on it. The T1 has the /25 block of public IP addresses for my external servers, so they clearly won't be able to load balance inbound without BGP, which is not an option. The firewall connects to a cisco 3640, which acts as the gateway router.
So here's what I'm thinking. One port on the firewall handles the public IP addresses for mail, VPN, etc.. and connects to the router with public IPs as it is right now and is working. I connect another port from the firewall to the router using NAT, and set up ASL to Masq all non-specific traffic to the NAT addressed interface. I then establish both my T1 and DSL connections on the Cisco router. Add two default routes with the same weight, one route for each interface. Will this then load balance outbound and inbound traffic? My assumption is that the router will load balance outbound traffic and by virtue of that incoming traffic will point back to the WAN connection that sourced it, thereby balancing connections. The router will then send it down the interface with the private IP addresses to the firewall. If traffic sourced from the firewall interface with the public IP addresses, then the router will return it that way, and mail servers etc, will work..
Is this something feasible or am I really showing my ignorance here? What are the flaws in the plan? Are there other options? Sorry if this is more Cisco and less ASL. It seems real gray to me...
Thanks for the help.
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