Cisco: Configuring secondary IP addresses on an interface.

Configure SSH login with TACACS Cisco, along with username and enable password June 5, 2016.

Cisco LLDP for non Cisco neighbor discovery June 28, 2016.

Cisco 800 series ISR: Basic Config July 3, 2016.

Basic troubleshooting: Cisco ISDN PRI and BRI July 30, 2016.

Copying configs using TFTP August 21, 2016.

Finding a rogue DHCP server May 9, 2019.

SSH access on Cisco routers and switches May 9, 2019.

Using an ACL to prevent internet access for a specific host May 9, 2019.

Problem: Switchports will not go into voice VLAN no matter what you do: -ISL May 9, 2019.

Configuring netflow – top talkers, etc May 9, 2019.

TDR testing – testing cables September 1, 2020.

Clear config on a port December 8, 2020.

You will now find that you can get to the internet from the virtual machine. (note that you use the interface name, (inside,outside0 not g1/0, etc) (Very different from IOS) You create an object and assign properties to it.

Route outside 0 0 192.168.254.2 (The default router on this network) Note that the higher the security number, the more trusted the interface. (Note: Interfaces must be named using the nameif command, and if you use the inside and outside nomenclature, the security levels will automatically be set) Step 2 Configure the outside and inside interfaces: You have an internal network: 192.168.1.0, and an external network: 192.168.254.0, gateway 192.168.254.2Īlthough the external network is on a non routed network, it could be a public IP, but it is set up within a network.Ĭreate a new GNS3 project, and add a switch, a virtualbox VM, a cloud, and ASA, as in this diagram: (note, the switch is only there because you can’t connect anything directly to the cloud interface.) The first basic configuration: Dynamic (many internal hosts to a single or range of external addresses) Once you have your ASA, drag and drop it in to your workspace. Instructions here:Īnd here, while it lasts, with file downloads: The first step is to create the ASA, which is created in QEMU. Setting up a test configuration on GNS3 with an ASA firewall is possible.

Cisco asa firewall ios for gns3