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Mar 1, 2012

The following diagram is showing what I "Plan" on doing or "Hope" I can do. This is the most complicated deployment I have taken on in my profession, and Honestly it is very exciting, but had some questions.
 
1. The network between the ASA's and Routers, is that suppose to be a Private network or Public Network? I have to assume Public because I want my ASA's to take care of the NAT.
 
2. ASA's are runing single context Active/Standby so what way will the ASA push out going traffic?
 
3. The routers need to know about each other in a BGP configuration, correct? We accomplish this using iBGP so will that traffic need to be allowed through my firewall to allow the routers to share that information, or should these routers be talking to each other outside the firewalls?
 
Is this design possible? I am sure there are limitations as always, just trying to wrap my head around the flow of traffic and where to start.
 
Additional Details/Requirements -
 
BGP routers are 2921's that I have control of. Both routers have 4 port GigEtherswitches in them.
 
ASA's are Active/Passive and cannot be Active/Active due the limitations of the Active/Active Design (VPN limitations)
 
Both ISP's must be used for outbound traffic, I would like to be able to load balance, but can send some traffic one way and the rest of the traffic the other way based on Routes.
 
ISP's are not Symentrical, one is 50mbps and the other is 250mbps.
 
All NAT should take place at the ASA's
   
Additional Questions:
 
The routers that have gig etherswitches, can they run HSRP?
 
Should I be putting Layer 3 switches between the routers and the ASA's instead?
 
Where should I run my iBGP communication for the routers?

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