Cisco Firewall configure question

By singapork
Mar 14, 2009
  1. Hey there i would like to know whether it is possible to configure the "inside interface" of cisco router with /24 subnet, which is connected to a layer 3 switch which has few network segment using /23 subnet...would it cause routing conflict?

    FIREWALL "inside" interface ( |----->LAYER 3 SWITCH------->internal network,
  2. jobeard

    jobeard TS Ambassador Posts: 9,144   +597

    hmm; *IF* there's one connection from the Cisco to the switch which then provides the fan-out into the x.100.0/24, then the rules would be generic filters; high level, non-destination ip specific (no layer 2,3 rules)

    there should not be problems with that approach.

    Think of the Cisco as a gateway filter and then the L3 Switch as the low level controller.
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