![]() However, hosts in the Internet cannot initialize connection to devices in DMZ. Thanks to this security level configuration, all devices inside DMZ can initialize connection to the Internet. ![]() The interface GigabitEthernet0/2 connects ASAv_DMZ-I to the device vIOS-EDGE-I. The security level for the interface GigabitEthernet0/2 is set to 0. The security level configured on the interface GigabitEthernet0/0 is set to 100. ![]() The switch is connected to ASAv-DMZ-I GigabitEthernet0/0 interface. The switch vIOS-DMZ-I is an access switch that connects servers to the network. To do so, copy a file coredump.cfg to disk0.ĪSAv_DMZ-I# copy disk0:/coredumpinfo/coredump.cfg disk0:/use_ttyS0 If we want to use GNS3 for ASAv administration, we need to configure vASA to redirect its output to a serial port. Let's configure authentication for access to the ASAv-DMZ-I console against a local user.ĪSAv_DMZ-I(config)# aaa authentication serial console LOCAL The second connected interface eth2 is represented by the interface GigabitEthernet0/1 in ASAv CLI etc.Īccess to all devices located in DMZ is authenticated against a user created in a local database of a particular device.ĪSAv-DMZ-I(config)# username admin password ciscoĪSAv-DMZ-I(config)# enable password cisco The first connected interface eth1 is represented by the Interface GigabitEthernet0/0 in ASAv CLI. We are not going to use the interface Management0/0. The interface eth0 is the Management0/0 interface on ASAv. As for cable connection the interface eth0 is not connected. Password to privileged exec mode is not set. Note: The configuration files are: ASAv-DMZ-I, vIOS-DMZ-I,, ntp.conf, dmz.conf. The subnet reserved for devices in VLAN10 is 195.1.1.160/29 with the default gateway IP address 196.1.1.166. The server is assigned to VLAN10 on the switch vIOS-DMZ-I. Currently, there is only server Serv-DMZ-I deployed in DMZ and configured with the IP addresses 195.1.1.161/29. Servers located in DMZ are assigned to different VLANs. ![]() The subnet 195.1.1.128/27 is further divided with /30 mask, creating 8 subnets suitable for point-to-point link configuration. The server Serv-DMZ-I provides DNS, NTP, Syslog services for devices in DMZ and a public web service for all hosts in the Internet.Īll devices located in DMZ have their IP addresses assigned from the subnet 195.1.1.128/25. And finally, the device Serv-DMZ-I is Linux Ubuntu 16.04.3 LTS with 1024 MB RAM assigned by GNS3. The device vIOS-DMZ-I is Cisco vIOS-L2 version 15.2 and it has assigned 512 MB RAM by GNS3. The ASAv_DMZ-I device is Cisco Adaptive Security Appliance Software version 9.6.1 and it has assigned 2048 MB RAM by GNS3. All the devices in DMZ are run by Qemu hypervisor. Our DMZ consists of three devices - ASAv-DMZ-I, a multilayer switch vIOS-DMZ-I and Serv-DMZ-I. The article explains the configuration of Demilitarized Zone (DMZ). This is the last article from the series of the articles discussing configuration of the enterprise network.
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