Hi all. My business has two buildings that are routed together on a private network.
They each have a broadband internet connection which work beautifully but as I have built up a dependancy on Internet access I cannot afford to lose access at either site.
Both have Cisco 837 external ADSL routers as their external routers. I would like to implement a DMZ behind each and then have a PIX or router or something at each site that can dynamically detect if the Internet is available and if not, auto failover to the other site's connection.
Here is a quick summary pic:
WWW WWW
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External Router1 (Cisco 837) External Router 2 (Cisco 837)
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DMZ1 DMZ2
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Internal FW1 (hardware?) Internal FW2 (hardware?)
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LAN1 LAN2
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Internal Router 1 Internal Router 2
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------------Routed Internal Link Between Sites---------
As I said, I want to failover automatically between the two Inet connections. I guess I would therefore need BGP configured on the PIX / firewall or whatever that connects my LANs to my DMZs but I am not sure. This will clearly determine what hardware I need to buy.
I want both connections live simultaneously and I want each building to use its own Inet connection unless it is unavailble , then I want it to use the other (and visa versa).
Can anyone help?
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