Splunk Search

trace if a server in a network path behind a firewall

LearningGuy
Motivator

How do I trace if a server in a network path behind a firewall?

The data is presented in the table below.
For example: IP 192.168.1.7 of server-A is connected to "LoadBalancer-to-Server" network, LoadBalancer-A is connected to "LoadBalancer-to-Server" network and "Firewall-to-Loadbalancer" network.
So, server-A is behind a firewall.
Please suggest. Thanks

ip name network behindfirewall
192.168.1.1 LoadBalancer-A Loadbalancer-to-Server yes
172.168.1.1 LoadBalancer-A Firewall-to-Loadbalancer yes
192.168.1.7 server-A Loadbalancer-to-Server yes
192.168.1.8 server-B Loadbalancer-to-Server yes
192.168.1.9 server-C network-1 no
192.168.1.9 server-D network-2 no

 

DanielPi_0-1718193988225.png

Labels (1)
Tags (1)
0 Karma

deepakc
Builder

This requires some discovery work from your organisation or network engineer, Splunk can't magically work out a network's connections unless you have data that states so. 

An option might be to ingest the data from these components and ensure the source_ip and destination_ip data is ingested and that may help you see the traffic flow  and you can use a Splunk app with the discovery work.  like https://splunkbase.splunk.com/app/6876   

Or you might want to look at, other third-party tools for that and perhaps then create a look up file that contains this information, so its then presented to Splunk and to help you with your use case.


  

  

Get Updates on the Splunk Community!

Index This | What is broken 80% of the time by February?

December 2025 Edition   Hayyy Splunk Education Enthusiasts and the Eternally Curious!    We’re back with this ...

Unlock Faster Time-to-Value on Edge and Ingest Processor with New SPL2 Pipeline ...

Hello Splunk Community,   We're thrilled to share an exciting update that will help you manage your data more ...

Splunk MCP & Agentic AI: Machine Data Without Limits

Discover how the Splunk Model Context Protocol (MCP) Server can revolutionize the way your organization uses ...