v1.1.0 – Introducing the Import Command

mmdbio CLI - Release 1.1.0

Release Date: 2025-11-11
Version: 1.1.0

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New Features

import command

• Import JSON file and generate .mmdb databases.
• Supports:
  • IPv4 and IPv6
  • Mixed IPv4/IPv6 JSON input
  • IP ranges, single IPs, and CIDRs
• Flags:
  • --in, -i : Input JSON file path
  • --out, -o : Output .mmdb file path
  • --ip : IP version (4 or 6), default is 6
  • --size : Record size (24, 28, 32), default is 32
  • --merge : Merge strategy (none, toplevel, recurse), default -> none
  • --alias-6to4 : Enable IPv6 to IPv4 aliasing for hybrid databases, default (false)
  • --disallow-reserved : Skip reserved IP blocks, default (false)
  • --title : Custom title for the .mmdb database
  • --description : Custom description for the .mmdb database

Example Usage

# Import IPv4-only JSON
mmdbio import --in ipv4_export.json --out ipv4_data.mmdb --ip 4 --size 32

# Import IPv6-only JSON
mmdbio import --in ipv6_export.json --out ipv6_data.mmdb --ip 6

# Import mixed JSON (IPv4 + IPv6) with 6to4 aliasing
mmdbio import --in all_data.json --out all.mmdb --ip 6 --alias-6to4

# Import and skip reserved IP ranges
mmdbio import --in dataset.json --out filtered.mmdb --disallow-reserved