Hi Experts,
Could you please guide me to best practices of implementing/designing Firewalls in existing Data Center. I am looking to implementing Transparent mode Firewalls to minimize disruptions and achieve server farm security.
Existing topology is collapsed Aggregration/Access Layer. 2x6500 Active/Standby through HSRP and external routing is OSPF. These switches connect to CORE through OSPF 0, Server farms networks default gateways is the HSRP address on Switches.Server networks segmented through Vlans [170-190].
Cisco ASA to be implemented, do not want major routing changes hence opted for transparent mode. Attached high level topology of what to be achieved.
Any detailed design guides would be appreciated on how the traffic flow from WAN to DC be intercepted and within DC.
