Does anyone have any experience with using the same interface for LAN and stateful failover? Cisco documentation suggests using two interfaces. I am about to convert from a PIX 525 to an ASA (deciding on model). I would prefer to not burn 2 of the 4 GiE interfaces on failover. Currently my PIX 525 uses a serial cable and a 100 Mb interface. The stateful interface is passing about 10 Mb /sec of traffic. The serial cable is rated at 115K. These numbers would suggest 1 GiE interface would be plenty.
Hes right. You can use one port per ASA. And to take that one step further, Cisco doesnt recommend it, but you can use the management 10/100 port for the failover. Ive been running that way for almost two years without any issues.
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