07-06-2012 10:40 AM - edited 03-11-2019 04:27 PM
Hi,
We have ASA FW 5010 in our organization and we have 4 DMZ's under the DMZ interface on ASA and all DMZ's are created on sub interfaces and assigned different VLANS on each DMZ's like
DMZ-1 = 172.20.1.x - VLAN 1000
DMZ-2 = 172.20.2.x - VLAN 1200
DMZ-3 = 172.20.3.x - VLAN 1300
DMZ-4 = 172.20.4.x - VLAN 1400
My question is:
Can we break sub interface (DMZ-4) into again another sub interface and assign another IP address like
DMZ-4 = 172.20.4.x
---------= 172.20.5.x
Means one VLAN has two IP addresses for gateway.
One thing more how many times we can break one interface into subinterfaces.
I hope my question is enough for understanding.
Regards,
Saeed
07-06-2012 10:50 AM
No, this is not a supported feature.
I think you can put 250 subinterfaces on a physical interface.
07-06-2012 10:53 AM
Thanks for the reply.
Can we break this feature on catalyst switches 2960 or 3560?
07-06-2012 11:28 AM
"Can we break this feature on catalyst switches 2960 or 3560?"
Answer is still no.
Hope that answers your question.
thanks
Rizwan Rafeek.
07-06-2012 03:36 PM
> Can we break this feature on catalyst switches 2960 or 3560?
You just want to have two IP-networks in one VLAN? If yes, that is possible on Routers and Switches with secondary IP-addresses. But the ASA doesn't support that.
07-07-2012 11:11 AM
Hi Saeed,
You can create sub interface for the sub interface... because virtual interfaces can be created on the physical interfaces...... But two ip segments for a single vlan is possible in L3 switches / Routers. I never tried it in firewalls....
Here is the example in L3 switch
interface Vlan100
ip address 10.0.0.4 255.255.255.0 secondary
ip address 10.2.2.4 255.255.254.0
no shut
!
07-07-2012 11:11 AM
Sorry... Small correction... You cannot create....
07-07-2012 11:21 AM
ASA 5510 supports max of 100 sub interfaces / vlans.....
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