Why Maintainer Delegation?
When you list your IPv4 address space for lease on IPv4.center, we need the ability to manage RIPE DB objects (inetnum, route, domain) on your behalf. Instead of sharing your maintainer password, we use a delegation model — you simply add our maintainer (ipv4center-mnt) to your inetnum object.
This is the industry-standard approach used by IP leasing platforms. It's secure because:
- You never share your password with anyone
- You can revoke access at any time by removing our maintainer
- You maintain full control over your address space
What You Need to Add
You need to add ipv4center-mnt to four attributes on your inetnum object:
| Attribute | Purpose |
|---|---|
mnt-by | Allows us to update the inetnum object itself |
mnt-lower | Allows us to create child (more-specific) inetnum objects for subleasing |
mnt-routes | Allows us to create route objects for BGP announcements |
mnt-domains | Allows us to create reverse DNS (rDNS) domain objects |
Step-by-Step Guide
Step 1: Find Your Inetnum Object
- Go to RIPE Database Web UI
- Enter your IP range (e.g.
185.100.0.0/22or185.100.0.0 - 185.100.3.255) - Find your inetnum object in the results
- Click on the inetnum to view its details
Step 2: Update the Object
- Click the "Update Object" button (pencil icon)
- You will see the current attributes of your inetnum
- Add the following lines to your object. You can click "Add Attribute" for each one:
mnt-by: ipv4center-mnt mnt-lower: ipv4center-mnt mnt-routes: ipv4center-mnt mnt-domains: ipv4center-mnt
Important: Keep your existing maintainer in all these attributes too — don't replace it, just add ours alongside yours.
Step 3: Authenticate and Save
- After adding the attributes, click "Submit"
- RIPE will ask you to authenticate — enter your maintainer password
- The update will be applied immediately
Step 4: Verify on IPv4.center
- Go to your lease listing on IPv4.center Dashboard
- In the RIR Credentials section, click "Add"
- Use the "Verify" button to confirm the delegation is set up correctly
- Click "Save & Enable" to activate automatic record management
Example: Before and After
Before (original inetnum):
inetnum: 185.100.0.0 - 185.100.3.255 netname: MYCOMPANY-NET descr: My Company Network country: TR admin-c: JD12345-RIPE tech-c: JD12345-RIPE status: ASSIGNED PI mnt-by: MNT-MYCOMPANY source: RIPE
After (with delegation):
inetnum: 185.100.0.0 - 185.100.3.255 netname: MYCOMPANY-NET descr: My Company Network country: TR admin-c: JD12345-RIPE tech-c: JD12345-RIPE status: ASSIGNED PI mnt-by: MNT-MYCOMPANY mnt-by: ipv4center-mnt mnt-lower: ipv4center-mnt mnt-routes: ipv4center-mnt mnt-domains: ipv4center-mnt source: RIPE
Using Syncupdates (Alternative Method)
If you prefer using RIPE Syncupdates instead of the web UI:
- Go to RIPE Syncupdates
- Paste your complete updated inetnum object (including all existing attributes plus the new mnt lines)
- Add your password at the end:
password: YOUR_MAINTAINER_PASSWORD - Click "Submit Update"
Revoking Access
If you ever want to revoke IPv4.center's access to your address space, simply remove ipv4center-mnt from all four attributes on your inetnum object using the same process described above.
Need Help?
If you encounter any issues during the delegation process, please contact our support team at support@ipv4center.com or use the live chat on our website.