Question 221 of 507
LPIC-2 Network Client Management Practice Question
A Linux client is configured with two network interfaces: eth0 (connected to the internet) and eth1 (connected to a private LAN). The default route is set to eth0. The client can access the internet but cannot access hosts on the private LAN. What is the most likely cause?
⚠ Common exam trap
It's easy for candidates to assume a missing IP address or DHCP lease is the cause, but the question explicitly states the client has two configured interfaces—the real issue is the absence of a route to the private subnet, which is a classic LPIC-2 routing table pitfall.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
There is no route to the private subnet via eth1.
Without a route to the private subnet via eth1, the client has no way to forward packets destined for the private LAN out of eth1. The default route via eth0 only handles traffic for destinations not explicitly matched by other routes; if the private subnet is not in the routing table, packets to that subnet will be sent to the default gateway (internet) and fail. The `ip route` command would show the missing entry, and adding a static route (e.g., `ip route add 192.168.1.0/24 dev eth1`) resolves the issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A firewall on the client is blocking ICMP packets on eth1.
Why it's wrong here
Firewall could block ping, but the problem is likely routing since internet works.
- ✗
The eth1 interface is not configured with an IP address.
Why it's wrong here
The question does not indicate misconfiguration; if eth1 is up and has an IP, it should work with a route.
- ✗
The eth1 interface is not receiving a DHCP lease.
Why it's wrong here
Static IP could be used; DHCP is not required.
- ✓
There is no route to the private subnet via eth1.
Why this is correct
Without a specific route, traffic to the private subnet may be sent to the default gateway (eth0) and fail.
Visual reference
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Last reviewed: Jun 11, 2026
This LPIC-2 practice question is part of Courseiva's free LPI certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LPIC-2 exam.
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