PIX Transparent mode with failover

I am a little confused about transparent mode with failover. To explain my confusion,

Let's take the scenario of routed mode in this topology:
LAN router ====== PIX ====== Internet router

In the above diagram, there is a single PIX firewall connecting physically via CAT5 to each of the routers. If I want to add a second PIX, I would have to also get a switch and configure two VLAN's on the switch. In this instance, I would then connect the (2) PIX inside interfaces and the inside router to VLAN1 and would connect the (2) PIX outside interfaces and the outside router to VLAN2.

How would you accomplish the above if you are doing transparent mode along with failover?

Thank you
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billwhartonAsked:
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lrmooreCommented:
Hey, Bill...
This document clearly shows that it can be done
http://www.cisco.com/univercd/cc/td/doc/product/multisec/asa_sw/v_7_1/conf_gd/failover.htm

I don't have a way to test, but I would suspect it would be exactly as you would configure it for routed mode
VLAN on inside with LAN router and 2x PIX inside
VLAN or another switch on outside with 2x PIX outside and Inet router LAN
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billwhartonAuthor Commented:
Cisco says that in transparent mode, both inside & outside interface should be part of the same vlan/subnet
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lrmooreCommented:
Yes, in the same IP subnet, but I would think that having a seperate switch on either side, or separate VLAN would make its job easier.
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