Asr1000-rommon.173-1r.spa.pkg [portable] Official

Upgrading the ROM monitor on an ASR 1000 is straightforward but requires a reload to apply. Follow these steps carefully to ensure a smooth transition. Step 1: Copy the File

While the upgrade is generally straightforward, you may encounter some issues:

Cisco published a security advisory (cisco-sa-rommon-secboot-7JgVLVYC) regarding a vulnerability in the Cisco IOS XE ROM Monitor Software for ASR 1000 series routers among other platforms. This vulnerability could potentially allow an unauthenticated, physical attacker to break the chain of trust and load a compromised software image on an affected device. Cisco released software updates to address this vulnerability.

The output should now show that the ROMmon version matches the 17.3(1r) release. Troubleshooting asr1000-rommon.173-1r.spa.pkg

Always consult the Cisco Release Notes for the specific ASR 1000 model you are using before proceeding with a ROMMON upgrade.

Once the router completes its boot cycle, confirm that the new ROMMON version is active. Run the following command: Router# show rom-monitor slot R0 Use code with caution.

It resolves known hardware initialization bugs, preventing unexpected reboots and optimizing memory management during the boot cycle. Upgrading the ROM monitor on an ASR 1000

asr1000-rommon.173-1r.spa.pkg

The ROM Monitor (ROMMON) is the bootstrap program that initializes the hardware and boots the Cisco IOS XE operating system on Cisco ASR 1000 Series Aggregation Services Routers. Updating your ROMMON to a stable release like ensures compatibility with modern Cisco IOS XE releases, patches critical hardware vulnerabilities, and resolves system boot bugs. Why Upgrade to ROMMON 17.3(1r)SPA?

This post breaks down what this file is, why it is critical for your router's health, and how to verify it is running correctly. Troubleshooting Always consult the Cisco Release Notes for

Look for a string indicating version 17.3(1r)SG or equivalent microcode timestamping.

copy tftp://server/asr1000-rommon.173-1r.spa.pkg harddisk: upgrade rommon harddisk:asr1000-rommon.173-1r.spa.pkg reload

The upgrade is until the hardware is reloaded.

: Use the command copy startup-config running-config after the upgrade to properly parse the configuration. This known issue is tracked under Cisco Bug ID CSCwd81813.