Thursday, July 25, 2019

Cisco ASA 55XX - Two Interfaces on same subnet/L2 Interfaces

Hello,

I have a situation where I would possibly have the following setup:

VLAN 1(192.168.1.0) <—> Cisco ASA <—> Cisco Router (192.168.1,254)

The ASA will be the gateway for VLAN 1 and then route via the Cisco router to the internet.

Is it possible to have: A) The two interfaces on the ASA within the same subnet?

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B) Have one of the interfaces act as an access port L2 interface?

I cannot think of a way to get the above working? Is there there a solution to get the above working without re-IPing either VLAN 1 or the router?



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