Hey gurus, I have 3 questions for you, background info first.
My network is setup per this diagram.
Current config is as such:
- All layer 3 switches are running EIGRP, and are Cisco
- All traffic currently goes out FW A to ISP A; ISP B is not presently in use
- I have my ASN and /24, but the /24 was provided by ISP B and we have not yet switched to it / advertising it out via ISP A.
- NAT/PAT is being done on FW A
- I'm performing a major equipment/topology overhaul this summer and can COMPLETELY redo things if necessary.
My current plan is to advertise our /24 using eBGP through both ISPs, prepended for a preferred outbound route of ISP A. I was going to run iBGP internally between SW A and SW B to handle route.
My three questions-
- Is HSRP an option here or is my iBGP plan best?
- How do I handle incoming NAT'd traffic, destined for either internal or Data Center (DCSW A) during a failover?
- Is there an easy way to provide full redundancy for hosts sitting behind DCSW A and DCSW B ? I don't need Active/Active for those, plan on using Active/Passive. I guess this is related to #2....
I have a call setup tomorrow with my cisco engineer, but wanted to get some Reddit advice beforehand. Thanks in advance, and let me know if you need more info!
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