You attempt standard password recovery ( confreg 0x0 ), but the old ROMmon does not properly ignore the startup configuration. Solution: Upgrade to 173-1r , which includes a more robust password recovery mechanism that properly handles encrypted passwords (Type 6 and Type 8).
The asr1000-rommon.173-1r.spa.pkg is a small but indispensable file that underpins the boot integrity and hardware initialization of Cisco ASR 1000 routers. While network engineers rarely interact with it directly, its correct versioning and placement are essential for high‑availability deployments. Regular updates as part of the IOS XE lifecycle ensure security vulnerabilities are mitigated and new hardware is properly supported. asr1000-rommon.173-1r.spa.pkg
The upgrade is not permanent until the hardware module is reloaded. You can reload the entire chassis or use: hw-module slot reload Cisco Community Critical Considerations MD5 Signature Mismatch: You attempt standard password recovery ( confreg 0x0
If the new ROMmon causes issues (e.g., interfaces fail to initialize), you can usually roll back by: While network engineers rarely interact with it directly,