How to add Firmware Version for IP Routers during Discovery?

[omkar shinde]

Hello All,

I am trying to populate the firmware_version field for our IP Router [cmdb_ci_ip_router] CIs during Discovery.

Currently, Discovery identifies the routers correctly, but the firmware version remains blank. I can see the version information inside the sysDescr OID when I manually check the device via SNMP.

What I've tried:

• Checked the out-of-the-box (OOB) "Network Router" pattern.

• Verified that SNMP is working correctly.

Questions:

1. Is there a standard way to map sysDescr to the firmware field without breaking the OOB pattern?

2. Does anyone have a recommended Regex for parsing Cisco or Juniper version strings from the system description?

3. Should I use a Pattern Extension or a Post-Discovery Script?

Any guidance or examples of how you've handled this would be greatly appreciated!