ASA5510 base config for guest wireless network

Question

Hello
I am partitioning off my guest wireless traffic out a new connection.
I have a WISM and a 5508 controller. The WISM will anchor the subnets to the specific controller.
AP - WISM - 5508 - FW - Cable link - Internet
Can anyone assist in implementing a base config so only traffic originating inside can get out, nothing from outside getting in.
The external link will be via cable and I want to configure their static on my outside int,
Where would be the best place to ratelimit the subnet(s)?
sMc       

Answer 1

ip access-list 10 permit ip 172.16.16.0 255.255.255.0 eq 80ip access-list 10 permit ip 172.16.16.0 255.255.255.0 eq 443
These are router configurations and would not work on the ASA.  To do this the ACL config would need to look like this:
access-list LAN extended permit ip 172.16.16.0 255.255.255.0 any eq 80
access-list LAN extended permit ip 172.16.16.0 255.255.255.0 any eq 443
access-group LAN in interface inside
Keep in mind that you can change the ACL name (LAN) to anything you want it to be.  You could apply the ACL in the outbound direction but this is very unusual to do on the ASA and I do not suggest doing it unless you have a specific reason for doing so.
Also, to make sure this subnet has no access to inside services, what would be needed?
Not exactly sure where you are going with this.  Is this subnet also located on the inside interface? or on a different interface?
If it is located on a different interface, then all you have to do is either give it a lower security level than that of the inside interface (lets say 90 for example), or add an ACL that denies traffic to the inside network subnet and then under that rule have an entery permitting traffic to any.
Keep in mind that the ACLs are checked top to bottom and there is an implicit deny any rule at the bottom of all ACLs.  If this ASA is version 8.3 or higher the implicit deny can be seen in the global ACL in the ASDM.
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