Lab ips-09 - QoS Classification and Marking
QoS - Quality of Service - is how you give priority to traffic that needs it (voice, video) over traffic that does
Labs
Hands-on Cisco IOS XE lab walkthroughs. Each lab ships with a real CML topology, configs you can paste, and verified show output. Articles tagged Labs cover the full CCNA 200-301 blueprint across Network Fundamentals, Network Access, IP Connectivity, IP Services, and Security Fundamentals.
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Lab ips-08 - SNMPv2c vs SNMPv3
SNMP (Simple Network Management Protocol) is how monitoring systems poll devices for status, counters, and config. SNMPv2c uses community strings
Lab ips-07 - Syslog and Buffer Sizing
Syslog is the log-collection protocol every network device speaks. Configure your routers and switches to send their logs to
Lab ips-03 - Static NAT Inside/Outside
Static NAT creates a permanent one-to-one mapping between an inside private IP and an outside public IP. Used
Lab ips-02 - DHCP Relay (ip helper-address)
DHCP discover messages are L2 broadcasts - they do not cross routers. So when client and server are on different segments,
Lab ips-05 - NAT Overload (PAT)
NAT overload - usually called PAT (Port Address Translation) - shares a SINGLE outside IP across many inside hosts by tracking the
Lab ips-04 - Dynamic NAT with Pool
Dynamic NAT translates inside private addresses to a POOL of outside public addresses. Each inside host gets the next available
Lab ipc-13 - VRRP vs HSRP Comparison
VRRP (Virtual Router Redundancy Protocol, RFC 5798) is the open-standard equivalent of HSRP. Same idea: two or more routers
Lab ipc-12 - HSRP Active-Standby
HSRP (Hot Standby Router Protocol) is Cisco's first-hop redundancy protocol. Two routers share a virtual IP address;
Lab ips-01 - IOS XE as a DHCP Server
Cisco IOS XE can act as a DHCP server, handing out IP addresses to clients on a LAN. Not as
Lab ipc-14 - GLBP Active-Active Load Balancing
HSRP and VRRP have one router actively forwarding for the virtual IP while the others sit idle. GLBP (Gateway Load
Lab ipc-09 - Static Route to a Remote Loopback (with Loopback Source)
A specific static route to a remote loopback is the simplest possible deterministic routing test. The loopback as the ping