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Adding a DMZ network in my Cisco ASA 5520 network

Posted on 2014-09-20
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Last Modified: 2014-10-02
Dear All,

  I have two Cisco ASA 5520 with configured as LAN and WAN interfaces only with Clustered configured.

LAN IP: 192.168.1.x., WAN 62.11.11.x
I need to configure a new DMZ range 172.30.30.x n the third ASA interfaces  and make sure that the cluster config will still working.

can someone please advise the steps and the required route to be added.

Thanks
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Question by:ITMaster1979
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Expert Comment

by:Pete Long
ID: 40334614
ASA 5500 Adding a DMZ Step By Step

The only difference for you is, if you are in active standby, you need to add an active and standby IP to the DMZ interface i.e

!
interface Ethernet0/2
 speed 100
 duplex full
 nameif DMZ
 security-level 0
 ip address 123.123.123.123 255.255.255.248 standby 123.123.123.124
!

Carry out all configuration on the primary active firewall, connect the same interfaces of both, to the DMZ, and Bobs yer uncle

PL
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ITMaster1979 earned 0 total points
ID: 40334985
Do I have to create the dmz vlan in my core switch?
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by:Pete Long
ID: 40335191
That prety much depends on your topology, Im my case I prefer a DMZ to have its own switch, rather than relying on VLAN seperation. If I was deplying the solution to a government body, then I would have to have a physical seperation. But if you are not as concerned about security VLAN separation is adequate.
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by:ITMaster1979
ID: 40356563
good
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