Network Services
10 labs in this topic area, in recommended learning order.
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Configuring Cisco IOS DHCPv4 Server and Relay Agent
Configure an enterprise Cisco router as a DHCPv4 server with excluded addresses, network pools, default routers, and DNS parameters, and configure an IP helper-address relay agent across routed interfaces.
- Network Services
- DHCP
- DHCP Relay
- IP Helper Address
- Cisco IOS
- Level
- Intermediate
- Time
- 40 min
- Simulator
- Tested in Packet Tracer
-
IPv4 Dynamic PAT at the Edge
Configure and verify Port Address Translation (NAT Overload) on a Cisco ISR 4321 edge router, translating private RFC 1918 branch LAN traffic to a single public IP address to access external services.
- Network Services
- NAT
- Pat
- NAT Overload
- Cisco IOS
- Level
- Intermediate
- Time
- 60 min
- Simulator
- Tested in Packet Tracer
-
Static NAT and Inside Server Publishing
Configure and verify one-to-one Static NAT on a Cisco edge router to publish an internal enterprise server to external internet clients via a dedicated public IPv4 address, while preserving private host isolation.
- Network Services
- NAT
- Static NAT
- Server Publishing
- Cisco IOS
- Level
- Intermediate
- Time
- 50 min
- Simulator
- Tested in Packet Tracer
-
DNS Records and HTTP Web Services
Configure and verify an authoritative Domain Name System (DNS) server and an HTTP web server in Cisco Packet Tracer, managing Address (A) and Canonical Name (CNAME) resource records, validating endpoint name resolution via nslookup, and troubleshooting DNS record faults.
- Network Services
- DNS
- Http
- Name Resolution
- Cisco Packet Tracer
- Level
- Beginner
- Time
- 45 min
- Simulator
- Tested in Packet Tracer
-
NTP and Syslog Network Monitoring
Configure and verify Network Time Protocol (NTP) client synchronization and centralized Syslog logging on a Cisco IOS router, establishing synchronized clock timestamps, configuring message severity traps, forwarding system logs to a dedicated Syslog server, and observing real-time fault notifications.
- Network Services
- Ntp
- Syslog
- Network Monitoring
- Cisco IOS
- Level
- Intermediate
- Time
- 60 min
- Simulator
- Tested in Packet Tracer
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TFTP Configuration Backup and Restore
Back up Cisco IOS running configuration to a centralized TFTP server over UDP port 69, simulate a catastrophic router configuration loss, and execute full disaster recovery and state restoration.
- Network Services
- Tftp
- Backup and Restore
- Disaster Recovery
- Cisco IOS
- Level
- Intermediate
- Time
- 60 min
- Simulator
- Tested in Packet Tracer
-
Stateful DHCPv6 Address Assignment
Configure and verify a Cisco router as a Stateful DHCPv6 server and examine ICMPv6 Router Advertisement Managed configuration flags, client lease bindings, and end-to-end IPv6 routing.
- IPv6
- Dhcpv6
- Stateful Dhcpv6
- Slaac
- Icmpv6
- Level
- Advanced
- Time
- 60 min
- Simulator
- Tested in Packet Tracer
-
DNS Resolution Failure Troubleshooting
Diagnose and resolve common Domain Name System (DNS) failures in Cisco Packet Tracer, including misconfigured client DNS server addresses, disabled DNS daemon services, and missing A/CNAME resource records, verifying systematic remediation using ipconfig, nslookup, ping, and web browsers.
- Network Services
- DNS
- Troubleshooting
- Nslookup
- Ipconfig
- Level
- Beginner
- Time
- 45 min
- Simulator
- Tested in Packet Tracer
-
NAT and PAT Troubleshooting Challenge
Diagnose and resolve common Port Address Translation (PAT / NAT Overload) misconfigurations on an enterprise edge router. Identify and correct translation ACL subnet mismatches, interface boundary role errors (ip nat inside/outside), and verify end-to-end outbound Internet connectivity for multiple internal subnets using active translation tables and statistical counters.
- Network Services
- NAT
- Pat
- NAT Overload
- Troubleshooting
- Level
- Intermediate
- Time
- 60 min
- Simulator
- Tested in Packet Tracer
-
DHCP Helper-Address Multi-Subnet Troubleshooting
Diagnose and resolve multi-subnet DHCPv4 helper-address forwarding failures across routed subinterfaces and a central Cisco IOS DHCP server. Troubleshoot helper-address configuration faults, 802.1Q subinterface gateway mappings, and DHCP pool scope mismatches preventing remote branch clients from obtaining dynamic IP leases.
- Network Services
- DHCP
- IP Helper Address
- Helper Address
- VLANs
- Level
- Intermediate
- Time
- 45 min
- Simulator
- Tested in Packet Tracer