![]() ![]() Users connected to the ports of the access switches have their IP addresses assigned from the networks 192.168.10-40.0/24. Note: The router vIOS-EDGE-I has assigned a public IP address 198.10.10.2 from the ISP1 IP address range and the IP address 197.10.10.2 from ISP2 IP address range. The first a half of the IP addresses range is used for NAT and the second half of the range is used for DMZ. The company has assigned a block of the public IP addresses 195.1.1.0/24. Switch: Cisco vIOS l2 Software, vios_l2-ADVENTERPRISEK9-M, version 15.2ģ. Firewall: Cisco Adaptive Security Appliance Software Version 9.6(1)Ģ. Switch: Cisco vIOS l2 software, vios_l2-ADVENTERPRISEK9-M, version 15.2Įdge Router: Cisco IOSv software, VIOS-ADVENTERPRISEK9-M, version 15.6(2)T,ġ. Core switches: Cisco vIOS l2 software, vios_l2-ADVENTERPRISEK9-M, version 15.2įirewall ASAv-I: Cisco Adaptive Security Appliance Software Version 9.6(1)ġ. Distribution switches: Arista vEOS, version 4.17.2FĤ. Now we can spend few words about devices in enterprise network and software they are running. Both ISP routers are bridged via GNS3 clouds to the laptop Ethernet Card RTL8168 (enp4s0f2) in order to simulate connection to the Internet. The enterprise is connected to the ISP1 and ISP2 routers via enterprise edge router. The DMZ consists of the Cisco ASA firewall, layer 3 Cisco switch and the DMZ server. The edge router connected DMZ to the rest of the enterprise network and to the Internet. The Cisco ASA firewall connects a campus network, data Center and the edge router. The company edge router is connected to the Internet using two Internet Service Providers (ISPs). Unlike the campus network, the aim is to show configuration of the services running on the Server1 instead of discussing the complete DC design. The design of the DC is very simplified as the network tiers are squeezed to a single switch layer 3 switch. The data center is composed of the layer 3 Cisco switch and the server. The enterprise campus network consists of the access, distribution and core layers. Ethernet card: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller The entire topology is virtualized, running on the ASUS K55VM laptop with the following hardware and software specification:ġ. Picture 1 - Enterprise Network Running On Laptop with GNS3 As I have mentioned, it composes of the campus network, data center (DC), DMZ and ISPs. ![]() The complete enterprise network topology is shown on the picture below. The name of the enterprise is CompanyXYZ. Below is the list of the articles. I hope you find them useful.Įnterprise Network on GNS3 - Part 1 - IntroductionĮnterprise Network on GNS3 - Part 2 - Access LayerĮnterprise Network on GNS3 - Part 3 - Distribution and Core LayersĮnterprise Network on GNS3 - Part 4 - Cisco ASAv-IĮnterprise Network on GNS3 - Part 5 - Data CenterĮnterprise Network on GNS3 - Part 6 - Edge Router and ISPsĮnterprise Network on GNS3 - Part 7 - DMZ Now, almost a half of the year later, I am ready to share my experience with the blog readers and publish the articles. Luckily, I was done with the configuration of all devices and I wrote several articles describing my progress. In March 2017 I completely stopped working on this project. ![]() During the next several weeks I added new devices into the topology, struggling with no time due to complicated family circumstances. What had firstly begun as a simple lab, later grew in to a real world enterprise network consisting of a campus, data center, DMZ network blocks and ISPs. Several months ago I had created a simple GNS3 network topology for practicing my networking skills. ![]()
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