Cisco Network Topology Interactive Guide

Lab Setup: Inter-VLAN Routing, DHCP Helper, OSPF & Static Routing
Interactive Topology Map
Hover or click on any device or network link to view IP settings and status.
VLAN 30 (192.168.30.0/24) VLAN 10 VLAN 20 Trunk (10, 20) 192.168.99.0/30 208.67.222.0/24 209.165.201.0/30 209.165.200.0/30 207.150.0.0/24 Gig0/1 (.1) Gig0/0/1 (.2) Gig0/0/2 (.1) Gig0/0 (.2) Gig0/0/1 (.1) Gig0/0/1 (.2) Gig0/0/0 (.1) DHCP Server PC0 (Vlan 10) PC3 (Vlan 20) PC1 (Vlan 20) PC2 (Vlan 10) 3560 MLS Switch3 (2960) Router2 Switch0 (2960) HTTP Server0 Internet Router Router1 Switch2 (2960) PC C-PT
Lab Addressing Verifier & Interactive Quiz
Enter an IP address and select a network component to verify if it belongs in the correct subnet defined by the topology.
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Lab Setup Guide

Phase 1: Switch VLANs & Trunk Port Configurations

First, construct the local switching infrastructure on the 3560 Multilayer Switch and Switch3 (2960). Create the necessary VLANs and configure the Trunk link connecting them.

  • Create VLAN 10 & 20 on both Switches Name VLAN 10 "Sales" and VLAN 20 "Web_Dev".
  • Assign Interfaces to VLANs Assign MLS Fa0/1 and Switch3 Fa0/2 to VLAN 10. Assign MLS Fa0/3 and Switch3 Fa0/1 to VLAN 20.
  • Configure Trunk Port encapsulations On the Multilayer Switch, set switchport trunk encapsulation dot1q before configuring switchport mode trunk on Gig0/2.

Phase 2: Inter-VLAN Routing & Routed Interfaces

Enable Inter-VLAN routing on the Multilayer Switch using Switch Virtual Interfaces (SVIs) and assign the IP address for the uplink to Router2.

  • Configure SVIs (VLAN Interfaces) Create Interface Vlan 10, Vlan 20, and Vlan 30. Assign respective gateway IPs: 192.168.10.1/24, 192.168.20.1/24, and 192.168.30.1/24.
  • Enable IP Routing Activate global multilayer routing with the command ip routing.
  • Setup Uplink Routed Interface Configure Gig0/1 as a routed interface: use no switchport and assign 192.168.99.1 255.255.255.252.

Phase 3: DHCP Relay & SVI Helpers

Configure the DHCP Server (Fa0: 192.168.30.10/24, Gateway: 192.168.30.1) and setup DHCP Helper IP addresses on the SVIs so client PCs in VLAN 10 and 20 can receive automated addressing.

  • Configure DHCP Server IP Settings Give the server a static IP of 192.168.30.10/24 and default gateway of 192.168.30.1.
  • Establish IP DHCP Pools on DHCP Server Configure two pools on the Server: VLAN_10 (Net 192.168.10.0/24, Gateway 192.168.10.1) and VLAN_20 (Net 192.168.20.0/24, Gateway 192.168.20.1). Enable the DHCP service.
  • Add DHCP Helper Address on SVI Interfaces Under interface vlan 10 and interface vlan 20, add ip helper-address 192.168.30.10 to relay broadcast DHCP packets to the server.

Phase 4: Router WAN Interface Setup & Static Routes

Configure all interfaces on Router2, Internet Router, and Router1. Establish static routing across the network.

  • Configure Router2 Interfaces Gig0/0/1 = 192.168.99.2/30. Gig0/0/0 = 208.67.222.1/24. Gig0/0/2 = 209.165.201.1/30. Do a no shutdown on all.
  • Setup WAN and Internet Router Interfaces Configure Internet Router: Gig0/0 = 209.165.201.2/30. Gig0/0/1 = 209.165.200.1/30. Configure Router1: Gig0/0/1 = 209.165.200.2/30, Gig0/0/0 = 207.150.0.1/24.
  • Create Static Routes Add default route ip route 0.0.0.0 0.0.0.0 192.168.99.2 on MLS. On Router2: ip route 192.168.0.0 255.255.0.0 192.168.99.1, default route via 209.165.201.2. On Internet Router: routes to 192.168.0.0/16 and 208.67.222.0/24 via Router2, route to 207.150.0.0/24 via Router1.

Phase 5: Connectivity Verification & Troubleshooting

Verify end-to-end IP network connectivity. Students must verify address auto-configuration and check web-server accessibility.

  • Verify Client IP Assignment Set PC0, PC1, PC2, and PC3 to DHCP mode. Verify they receive IP addresses in their respective VLAN ranges.
  • Perform Ping Verification Tests Ping the HTTP server (208.67.222.222) from PC0 and PC3. Ping PC C-PT (207.150.0.24) from local client PCs.
  • Verify HTTP/Web access Open the Web Browser app on PC0 and navigate to http://208.67.222.222. Confirm the Packet Tracer web server greets you successfully.
Cisco CLI Command Generator

Select a device to view its complete Cisco IOS CLI configuration script. Use this to review commands or paste directly.

3560_Multilayer_Switch.cfg