Groups
Groups
Groups define sets of IP addresses/networks, telephone numbers/prefixes, and emails. These can be used across the WEB GUI, such as in alerts or filters. Typically, define SIP trunks from operators as groups for use in alerts or filters.
IP groups include a "Trunk" checkbox to distinguish internal/incoming/outgoing calls in CDR filters.
IP anonymize rewrite rules
This feature replaces original IP addresses in the database with anonymized values. It is useful for privacy compliance (GDPR) or hiding internal network topology.
Configuration Fields
| Field | Description |
|---|---|
| Description | Name of the rule. |
| IP to anonymize | The original IP or network range you want to hide. |
| Mask [0-32] | Source CIDR mask (e.g., 32 for a single IP, 24 for a whole subnet). |
| Anonymous IP | The new IP address that will be stored in the database. |
| Mask [0-32] | Target mask. If this matches the source mask, the host part of the IP is preserved (1:1 mapping). |
Example: Network Prefix Anonymization
To hide the real network prefix (e.g., 192.168.1.x) but keep the host addresses unique (mapping 192.168.1.55 -> 10.0.0.55):
- IP to anonymize: 192.168.1.0
- Mask: 24
- Anonymous IP: 10.0.0.0
- Mask: 24
Note: These rules apply only to new data processed after saving the configuration.
AI Summary for RAG
Summary: This article explains how to configure Groups and IP anonymize rewrite rules in VoIPmonitor. Groups allow defining sets of IP addresses, phone numbers, and emails for use in alerts and filters, with a specific "Trunk" option for distinguishing call directions. IP anonymize rewrite rules are used to replace original IP addresses in the database with masked values for privacy compliance (GDPR) or to hide internal network topology.
Keywords: groups, IP groups, tel numbers, emails, SIP trunks, alerts, filters, Trunk checkbox, IP anonymize, rewrite rules, GDPR, privacy, IP masking, network topology
Key Questions:
- What are Groups and how are they used in VoIPmonitor?
- What is the purpose of the Trunk checkbox in IP groups?
- How do I configure IP anonymize rewrite rules?
- How can I mask real IP addresses for GDPR compliance?
- How to anonymize a network prefix while preserving host addresses?