Can someone clarify the following for me as I have read conflicting articles. Questions refer to PIX 6.X1) Standard Failover
Configured ordinarily with Serial cable. Serial cable replicates firewall config between Active and Standby. This design does not provide Stateful Failover2) Stateful Failover
Can be achieved in 1 of 2 ways.
Serial Cable + Crossover Cable
Using Serial cable and additional Crossover cable between Active & Standby units. Serial cable replicates config between the 2 x units whilst Crossover cable acts as stateful Failover link. Stateful link requires an Ethernet connection hard coded to either 100BaseT or Gig depending on Interfaces
LAN based Failover. LAN connection between 2 x PIX's must be via a Hub or Switch hard coded to 100BaseT or Gig. LAN connection can be used as Stateful connection, however, recommendation is that separate Ethernet link between 2 x PIX's is used.
Assuming an additional Ethernet link is used for Stateful Failover, this connection can be a crossover cable. A serial cable would not be used.