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We have an ASA5505 that is our main firewall/connection between departments. Currently I need to look for a way to make so our development team can access our internal servers but they are not able to contact the rest of the network.

Currently this is our configuration.

0/0 Primary ISP 0/1 Data (network that needs to be restricted access) 0/2 Voice 0/3 Servers 0/4 Guest wireless access (no access to any network) 0/5 is the Dev port and will go into their own switch.

our current IP scheme is 192.168.10.x

I can create an interface for the Dev port but it would make me put it on another subnet ( ect) Can you guys think of a way I can restrict access to the Dev network but maintain connectivity to the servers?


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You can create an ACL for the DEV team to only allow access to a specific range of IP addresses (servers they need access to) and deny access to everything else.

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My problem that comes in is that by having Dev on port 0/5 they are on the network vs the servers are on the range Do you know if there is a way they can communicate? When I configure it any network thta is off of the 192.168.10.x scheme will not communicate with the rest. My initial thought was that they are on the same subnet ( so they should connect and all I would need to do is have the dev department block communication to the rest of the network but with them not being able to communicate at all. – Lbaker101 Nov 9 '11 at 17:56
I'm having some difficulty understanding where these Dev users are. They are coming from the network off the Dev port 0/5, right? You then want them to have access to certain servers from the network off 0/3 port? – Rowell Nov 9 '11 at 18:45
Corrrect. They are connected directly to 0/5 and all the servers will be on 0/3 (entire network accesses them) but I need to restrict the Dev network (0/5) to only connect to the servers on 0/3 – Lbaker101 Nov 9 '11 at 19:41
You can create an ACL to allow only traffic from 0/5 ( subnet) to 0/3 (192.168.x.0) and deny anything else. Here's how to create access lists – Rowell Nov 9 '11 at 21:06

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