Practical Cisco Networking Labs in Cisco Packet Tracer

Connect two VLANs (100 and 200) through a single router interface by creating sub-interfaces FastEthernet 0/1.100 and 0/1.200, using dot1q tagging to route between VLANs.

Build a router-on-a-stick lab in Cisco Packet Tracer by creating a four-switch topology, configuring VLANs 100 and 200, trunk ports, and DHCP pools on R1 for both VLANs.

Explore how spanning tree protocol prevents layer 2 loops by electing a root bridge, selecting root and designated ports, and blocking redundant links; covers per-vlan stp and rapid-pvst.

Set up vtp server and client switches, define domain cyber and password cyber, create vlan 10 hr, 20 finance, 30 legal, and verify with show vlan brief and connectivity tests.

Explore STP vulnerabilities and learn to protect a layer 2 network from STP-based attacks. Implement BPDU guard and root guard on access ports configured with portfast to prevent man-in-the-middle attempts.

Configure vlans and trunks on multilayer switches, enable ip routing, and establish static routes across a layer 3 link to connect vlans 10/20 with 30/40.

Configure an Ether Channel (layer 2) to aggregate multiple links into a single high-speed port channel, using PAgP or LACP with dot1q trunking for vlan 1.

Explore static routing and default routes with practical Cisco examples, learn how routers use next hop and exit interfaces, and compare static versus dynamic routing in Packet Tracer labs.

Configure rip version 2 with no auto-summary on all routers and set passive interfaces on router 3, then review show ip routes and cef concepts.

Learn how OSPF uses areas and a backbone area 0, with ABRs, to share topology and compute path costs from interface costs.

Explore the basic concepts of frame relay and how to configure a point-to-point frame relay network in Cisco Packet Tracer, including PVCs, DLCIs, and CSU/DSU connections to a provider cloud.

Explore multipoint frame relay, compare it with point-to-point setups, create a single multipoint sub interface in the same broadcast, and configure RIP for two networks with DLCIs.

Learn to configure OSPF authentication between routers in a multiple-area network, first with clear-text passwords and then with MD5 hashing, and verify with show running-config.

Learn how to create a precise OSPF summary for a LAN by extracting the common bits of its subnets with binary math and applying a single, exact mask.

Configure RIP version 2 and OSPF with area 0, then redistribute between RIP and OSPF, using subnets and a metric to translate routes across protocols.

Implement standard access lists in Cisco Packet Tracer to deny host 10.0.0.5, block 12.0.0.0/24 to 14.0.0.0/24 traffic, and restrict telnet on line vty 0-15.

Learn to configure extended access lists in Cisco Packet Tracer, ban specific hosts and networks, apply ACLs to interfaces, and insert rules to block telnet traffic.

Explore NAT and PAT concepts with practical examples, using private to public IP translation, static and dynamic NAT, and port address translation to conserve public addresses.

Configure BGP across multiple autonomous systems, redistribute OSPF and EIGRP into BGP, fix missing EIGRP config, and validate routes with ping in a Packet Tracer lab.

Learn to configure OSPF and HSRP across routers in Cisco Packet Tracer, set a virtual gateway IP of 192.168.1.1, and test failover with track and preempt features.

Build a practical VoIP topology in Packet Tracer with routers, a switch, an access point, VoIP gateway, IP phones, and VLANs for data and VoIP (192.168.3.0/24), using Cisco IP Communicator.

Configure a router on a stick with vlans and dhcp for voip devices, enable telephony service, and set up a switch with voice vlan to test calls.