Cisco CCNA Labs with Packet Tracer

Design a scalable Cisco CCNA lab network for HQ and a remote site, using five 48-port switches and core layer 3 switches, with VLANs for management, data, voice, and servers.

Configure hostnames on each device to match the topology, such as HQ Core 1 and HQ Core 2. Verify connections with show cdp neighbors to confirm core connections are up.

Learn to configure VLANs using the VTP trunking protocol on a VTP server, create VLANs with names and IDs, and verify that by default all ports remain in VLAN 1.

Configure VTP on all switches and enable trunk ports for VTP message exchange; set a unique VTP domain and password, and script the settings for easy deployment via Packet Tracer.

Configure rapid spanning tree across all switches, verify and set root bridges, and optimize forwarding paths by enabling primary and secondary routes while monitoring forwarding and blocking states.

Configure layer 3 routing and default gateways on core switches using svi interfaces and a common hsrp virtual ip, with preempt and verified by show commands.

Configure a DHCP server and DHCP relay on core switches using IP helper addresses, assign a static IP to the server, and create DHCP pools across VLANs.

Configure nat on the firewall router by defining inside and outside interfaces, applying a standard 10.0.0.0/8 access list with a wildcard mask, and enabling overload nat for translations.

Explore router on a stick to connect a remote site to headquarters, using VLANs and subinterfaces for data and voice networks, with trunk uplink and centralized DHCP.

Configure BGP peering between headquarters and remote sites using private address ranges, advertise local networks with network statements, and set a default route, then explore BGP to EIGRP redistribution.

Configure ssh on routers and switches by creating a domain, generating rsa 2048 keys, enabling ssh version 2, and restricting vty input to ssh with local authentication.

Configure SNMP by adding read-only and read-write community strings and trap destinations, verify the management server setup, and emphasize securing credentials to prevent unauthorized configuration changes.

Enable port security on switch ports to limit MAC addresses, observe secure shutdown when multiple devices connect, and replicate the configuration across non-trunk ports.

Learn to use ipconfig and related commands on Windows to view IP address, DNS, DHCP, and MAC address; release and renew DHCP leases to troubleshoot network issues.

Demonstrates using ping to verify IP connectivity, test from core or VLAN, and perform extended ping with specific source and options for deeper layer 4–7 troubleshooting.

Execute traceroute to reveal the route and path to a destination, showing traversed devices from the default gateway to the firewall and into the Internet.

Troubleshoot layer 3 reachability by pinging endpoints and using show ip arp to locate their mac address, then verify layer 2 with show mac address table.

Explore traffic simulations in packet tracer by enabling auto capture to view HAARP traffic and drill down to layer 2 to 7 details, including IP and MAC addresses.

Explore CCNA labs with Packet Tracer, real-world examples, and lab training, plus access quizzes, flashcards, and the CCNA Quick Reference Guide for exam readiness.