beginner·20 min·免费
A Workstation Cannot Leave Its LAN
One workstation can reach its local LAN but cannot reach anything beyond it, while neighboring hosts work normally.
场景
A newly issued workstation at Palisade Healthcare can communicate with nearby devices on its local LAN, but it cannot reach the internal application server or the external test network. Other workstations on the same segment are unaffected, and no switch or router outage has been reported. Compare the working and failing hosts, identify what prevents traffic from leaving the LAN, and restore end-to-end access without changing the network's addressing plan.
学习目标
- default gateway
- ipv4 addressing
- local vs remote traffic
拓扑与配置
此环境包含 6 台设备（4 Hosts, 1 Router, 1 Switch）。你将配置并排查上方列出的网络技能。
课程主题
认证考纲目标
- ccna-200-301 · 目标 1.10：Verify IP parameters for Client OS
- comptia-network-plus-n10-009 · 目标 5.5：Troubleshoot and resolve general networking issues