Network Path Analyzer:

It's an OCI-native diagnostic tool that simulates and validates the network path between a source and a destination — without sending any actual traffic. It checks every hop: routing tables, security lists, NSGs, gateways, and peering connections, and tells you exactly where traffic is allowed, blocked, or misconfigured.

A free, simulation-based diagnostic tool inside OCI Console that traces the logical path between a source and destination, inspecting every routing and security policy along the way — without sending any real traffic.

Think of it as a "virtual traceroute with policy intelligence" — it doesn't just tell you the path, it tells you why traffic fails at each layer. Key uses: connectivity troubleshooting between subnets, validating firewall rules before deployment, checking DRG/VPN/FastConnect paths, auditing security list gaps.

Benefits:

1. No actual traffic needed — purely simulated, zero risk

2. Pinpoints the exact hop and rule causing a block

3. Works across VCNs, peerings, DRG, and on-prem paths

4. Free, native tool — no agent or third-party needed

5. Saves hours vs manual rule-by-rule audit

Imp point:

• It is GUI version of Telenet.
• We not need to provide the port from source its manage by OS while its needed at destination side.

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Steps to create Network Path Analyzer in OCI

OCI Console → Networking → Network Command Center → Network Path Analyzer

Server Details:

Note: We can see telnet is working fine between Jump Server from Public subnet and App Server from Private Subnet.

Getting Error: