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Lab nf-07 - Static Routes: Next-Hop vs Exit-Interface
A static route on a Cisco router can be written two ways: with a next-hop IP address, or with an
6 min read
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Lab nf-06 - Configure ARP and Static ARP
ARP - the Address Resolution Protocol - is the unsung mechanism that makes Layer 3 routing actually work over Layer
6 min read
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Lab nf-05 - IPv6 Addressing and EUI-64
IPv6 has been "the new thing" for so long that engineers sometimes forget it is now the default
9 min read
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Lab nf-02 - IOS XE CLI Survival
The IOS XE command-line interface is the language you will type into every Cisco router in this library. Hundreds of
6 min read
Lab sec-02 - Standard ACL (Numbered)
Standard access lists filter traffic based on source IP only. Numbered standard ACLs use IDs 1-99 and 1300-1999. They are
4 min read
Lab ipc-04 - OSPF Single-Area
OSPF (Open Shortest Path First) is the link-state protocol that powers most enterprise networks. Single-area OSPF puts every router in
5 min read