INFO: Security level for outside set to 0 by default.ĮxampleASA(config)# route outside 0.0.0.0 0.0.0.0 212.115.192.192Īs you can see the ASA sets the security level of the interface called outside to 0. Now we will start on the outside (WAN) configuration.ĭepending on the provider you might have to do this a little bit different but I will start with a static IP address first.ĮxampleASA(config-if)# ip address 212.115.192.193 255.255.255.248 This means that no one from the outside can start a session to the inside. With security levels you can always go from high (100) to low (0) but never the other way around unless configured otherwise. INFO: Security level for "inside" set to 100 by default.Īll the ASA devices work with security levels that you apply to VLANs/interfaces. With the ASA 5505 you work with VLANs instead of assigning IP addresses to actual interfaces. Now that this is done we will configure the inside (LAN) address of the ASA.
Cisco asa 5505 default ip full#
Privilege 15 is the highest of the privileges and gives you full control over the device. Setting your privilege to 15 is very important if you’re the one that is going to manage the ASA.
Cisco asa 5505 default ip password#
Now we will set a username and password so you can actually manage the ASA from your desk with SSH/Telnet/ASDM.ĮxampleASA(config)# username example password example privilege 15 This means your in configuration mode.Now we will give our ASA another hostname.Īs you can see the hostname changes immediately. Notice the (config) behind the device hostname. You can do this by issuing the command “configure terminal” The 1st thing you want to do is get into configuration mode.
Now enter enabled mode (look up if you forgot how to) and issue the command “show running-config“. Pre-configure Firewall now through interactive prompts ?Īnswer with “no” since you want to configure the ASA yourself (you want to be a cisco engineer right ?). Now when your router is restarted you will get this question:
You will use the “reload” command for this. Now that you erased your startup configuration you will need to reload the ASA to get a clean configuration. You will be prompted to confirm that you want to erase the configuration. You might wonder why but there is a lot of stuff in that configuration that you don’t need/want and could even cause some network issues if you connected it to your network (DHCP).Įrase configuration in flash memory? This will delete all the default configuration Cisco made for you. The 1st thing you want to do is type the command “write erase”.
Simply hit enter here because there is no enable password configured. ciscoasa> enableĪs you can see you will get a password prompt. ISP(config-router)#network 8.8.8.0 0.0.0.255 area 0 Create Object Network and Enable NAT ciscoasa(config)#object network LANĬiscoasa(config-network-object)#subnet 172.16.1.0 help or ‘?’ for a list of available commands. Ip range 172.16.1.5 – 172.16.1.6 ciscoasa(config)#dhcpd address 172.16.1.5-172.16.1.6 insideĬiscoasa(config)#dhcpd dns 8.8.8.8 interface inside Configure Default Route on Cisco ASA ciscoasa(config)#route outside 0.0.0.0 0.0.0.0 203.1.1.1 Configure Dynamic Route on Cisco Router (OSPF 1) ISP(config)#router ospf 1 ISP(config-if)#no shutdown Configure DHCP server and DNS server on Cisco ASA ISP(config)#interface gigabitEthernet 0/1 Router ISP ISP(config)#interface gigabitEthernet 0/0 Topology Configuration Assign IP on Cisco ASA and ISP Router and set Interface Inside and Outside on Cisco ASAĬisco ASA ciscoasa(config)#interface vlan 1Ĭiscoasa(config)#no dhcpd address 192.168.1.5-192.168.1.35 insideĬiscoasa(config-if)#ip address 172.16.1.1 255.255.255.0Ĭiscoasa(config-if)#ip address 203.1.1.2 255.255.255.0Ĭiscoasa(config-if)#switchport access vlan 1Ĭiscoasa(config-if)#switchport access vlan 2 They establish a barrier between secured and controlled internal networks that can be trusted and untrusted outside networks, such as the Internet.Ī firewall can be hardware, software, or both. A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.įirewalls have been a first line of defense in network security for over 25 years.