Configure a Static Default Route in Cisco Packet Tracer
How to configure Default Routing in Cisco Routers
Cisco Packet Tracer : static Routing Configuration Lab using Four Routers and total six network – Learn Linux CCNA CCNP CEH CISSP CISA Penetration-Testing Bug Bounty IPv6 Cyber-Security Network-Security Online
IP Default-Gateway Command on CISCO Router/Switch
Basic Switch Configuration (2.1) > Cisco Networking Academy's Introduction to Basic Switching Concepts and Configuration | Cisco Press
Configure a Gateway of Last Resort that Uses IP Commands - Cisco