Cisco ASA 5510 Firewall : Primary Configuration Tutorial

Continuing our series of posts about Cisco ASA 5500 firewalls, I am giving you below a simple configuration tutorial for the Cisco ASA 5510 safety equipment. This unit is the second product in the ASA series (ASA 5505, 5510, 5520 etc) and is pretty well-known due to the fact is meant for small to medium enterprises. Like the smallest ASA 5505 product, the 5510 will come with two license choices: The Base license and the Protection Additionally license. The second one (safety as well as) provides some effectiveness and components enhancements more than the base license, these as 130,000 Highest firewall connections (instead of 50,000), a hundred Highest VLANs (instead of 50), Failover Redundancy, etc. Also, the safety as well as license allows two of the five firewall community ports to get the job done as 10/a hundred/one thousand instead of only 10/a hundred.

Up coming we will see a basic Internet Entry state of affairs which will assist us realize the simple techniques necessary to setup an ASA 5510. Suppose that we are assigned a static public IP deal with a hundred.a hundred.a hundred.1 from our ISP. Also, the interior LAN community belongs to subnet 192.168.10./24. Interface Ethernet0/ will be connected on the outside (toward the ISP), and Ethernet0/1 will be connected to the Inside LAN switch.

The firewall will be configured to supply IP addresses dynamically (working with DHCP) to the interior hosts. All outbound conversation (from inside of to outside) will be translated working with Port Tackle Translation (PAT) on the outside public interface. Let us see a snippet of the required configuration techniques for this simple state of affairs:

Step1: Configure a privileged level password (empower password)
By default there is no password for accessing the ASA firewall, so the to start with phase before carrying out something else is to configure a privileged level password, which will be necessary to let subsequent accessibility to the equipment. Configure this beneath Configuration Mode:

ASA5510(config)# empower password mysecretpassword

Step2: Configure the public outside interface
ASA5510(config)# interface Ethernet0/
ASA5510(config-if)# nameif outside
ASA5510(config-if)# safety-level
ASA5510(config-if)# ip deal with a hundred.a hundred.a hundred.1
ASA5510(config-if)# no shut

Step3: Configure the reliable interior interface
ASA5510(config)# interface Ethernet0/1
ASA5510(config-if)# nameif inside of
ASA5510(config-if)# safety-level a hundred
ASA5510(config-if)# ip deal with 255.255.255.
ASA5510(config-if)# no shut

Action four: Configure PAT on the outside interface
ASA5510(config)# world-wide (outside) 1 interface
ASA5510(config)# nat (inside of) 1 … …

Action five: Configure Default Route toward the ISP (suppose default gateway is a hundred.a hundred.a hundred.2)
ASA5510(config)# route outside … … a hundred.a hundred.a hundred.2 1

Action six: Configure the firewall to assign interior IP and DNS deal with to hosts working with DHCP
ASA5510(config)# dhcpd dns
ASA5510(config)# dhcpd deal with inside of
ASA5510(config)# dhcpd empower inside of

The earlier mentioned simple configuration is just the commencing for generating the equipment operational. There are a lot of extra configuration options that you want to put into practice to enhance the safety of your community, these as Static and Dynamic NAT, Entry Regulate Lists to management traffic stream, DMZ zones, VPN etc.