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How to configure asa 5505 to support multiple internal network segments?

This is a newly bought Cisco ASA 5505 firewall. This is using ASA Version 8.4(2). Due to licensing, I found that it only allow to create 2 nameif - inside and outside, and Ip addresses not able to assigned to the physical ethernet interfaces. My network has 2 internal network segments - 10.0.1.x/24 and 10.0.2.0/24, and of course 1 external port to connect to router.

So, I configured vlan 2 interface with nameif outside, and assigned ethernet 0/0 to it. I configured vlan 1 interface with nameif inside, and assigned ethernet 0/1 and 0/2 to it. but, then how can I support both internal network segments on INSIDE?

thanks in advance.
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MezzutOzil
Asked:
MezzutOzil
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1 Solution
 
Ernie BeekExpertCommented:
Well, using a base license you can have a third interface/vlan. This is limited though, it can only communicate with one other vlan. But if you don't need the two networks to communicate with each other you could still use the third vlan for internet access.
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MezzutOzilAuthor Commented:
Hi einiebeek,

Can you show me the configurations?
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RPPreacherCommented:
Or super net 10.0.1.0/24 and 10.0.2.0/24 on the ASA and use 10.0.0.0/22 on the inside interface of the ASA
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MezzutOzilAuthor Commented:
Hi RPPreacher,

How about the default gateway for segment 1.0/24 and 2.0/24?
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Ernie BeekExpertCommented:
@RPPreacher: thought of that, but what are you going to use as default gateway(s) on both the networks?

@MezzutOzil: see if this works:
interface Vlan 1
nameif inside
security-level 100
ip address 10.0.1.254 255.255.255.0
interface Vlan 2
nameif inside2
security-level 100
ip address 10.0.2.254 255.255.255.0
interface Vlan 3
nameif outside
security-level 0
ip address x.x.x.x 255.255.255.x
object network obj_any
subnet 0.0.0.0 0.0.0.0
nat (inside,outside) dynamic interface
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MezzutOzilAuthor Commented:
Hi erniebeek,

I think the licensing only allow up to 2 nameif. When I wanted to create the 3rd nameif on new vlan, the following error prompted:

  This license does not allow configuratng more than 2 interfaces with nameif and without a "no forward" command on this interface or on 1 interface with nameif already configured.
 
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Ernie BeekExpertCommented:
Ok, minor adjustement:

interface Vlan 1
nameif inside
security-level 100
ip address 10.0.1.254 255.255.255.0
interface Vlan 2
no forward interface vlan 1
nameif inside2
security-level 100
ip address 10.0.2.254 255.255.255.0
interface Vlan 3
nameif outside
security-level 0
ip address x.x.x.x 255.255.255.x
object network obj_any
subnet 0.0.0.0 0.0.0.0
nat (inside,outside) dynamic interface
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MezzutOzilAuthor Commented:
Excellence, it works
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Ernie BeekExpertCommented:
Good!
Glad I could help and Thx for the points :)
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