Transparent router....sort of

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Aug 20th, 2008
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I am wondering if it is possible to have a router or L3 switch behind a firewall/router to route traffic to an other vlan on the switch or router without the need to change anything on the firewall/router. The entire range which the router/firewall is in should continue uninhibited thru the router or L3 switch but the traffic destined to the other vlan should be routed there.

I have added an image to clarify a little.

Thanks in advance



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don-sullivan Wed, 08/20/2008 - 08:20
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If your trying what's in the attached document and the firewall is a PIX. The answer is no, a PIX will not forward traffic on the same interface. You'd have to put the L3 switch as your default gateway and pass data to the firewall.



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