| Size (bytes) | Type | Name | Description | | :--- | :--- | :--- | :--- | | 4 | Unsigned LE Int | Magic | 0x7291A8EF | | 4 | Unsigned LE Int | File Size | Total length in bytes | | 32 | Byte array | Salt | Random salt (32 bytes) added to the password | | 4 | Unsigned LE Int | Magic Check | Encrypted magic 0xB1A1AC88 to verify password correctness |
Change IP addresses, DHCP scopes, or Firewall rules as needed. 3. How to "Repack" (Import) the Configuration
If you are dealing with a (such as v6 or v7) or a particular error during extraction, please share those details so I can provide customized commands or troubleshooting steps. Share public link
"Repacking" generally refers to extracting the internal components, modifying them, and bundling them back together.
The encryption process:
Method B: The RouterOS Virtual Machine Route (Safest for RouterOS v7)
python3 /tools/rsc_pack.py /tmp/rsc_dump/config.rsc --output /tmp/modified_store
lz4 -d payload.lz4 payload.bin
Delete lines like /interface ethernet , set [ find default-name=ether1 ] mac-address=XX:XX:XX... to avoid MAC address conflicts on new devices. open mikrotik backup file repack
Creating a "paper" on repacking MikroTik files requires understanding that these files are proprietary binary formats export files, which are plain text, a
This comprehensive guide covers the technical architecture of MikroTik backups, how to extract their contents, and how to safely repack them. ⚠️ Warning: Risks of Modifying Backup Files
Using the script method bypasses the need for complex decryption, serialization, and repacking tools entirely, making it the preferred choice for configuration migrations and templates.
You may only open, modify, and repack MikroTik backup files that you own or have explicit written permission to modify. | Size (bytes) | Type | Name |
INPUT_BACKUP="$1" NEW_IP="$2" OUTPUT_BACKUP="repacked_$(date +%s).backup"
: Most of these tools (like ROSbackup.py ) are command-line based. They require a comfortable grasp of Python and terminal operations. They are not "plug-and-play" for casual users. Comparison: Backup vs. Export Binary .backup .rsc Export Readability Binary (Requires Tools) Plain Text Portability Same Hardware Only Cross-Hardware Possible Includes Users Modification Requires Repack Tool Standard Text Editor Final Thoughts
After editing the extracted files, you must reassemble them into a single plaintext backup file.