vRack multi-region private network — no connectivity between DE1 and SBG5 instances

Public Cloud
1

Service/Project: ProjectTest1 (3ecccdb3877d49a5b37c6cebe895306c)
vRack: pn-1330697 (confirmed active and attached to ProjectTest1)

Description:

I'm testing vRack connectivity between two Public Cloud instances in different regions, and private-network traffic is not passing between them at all.

Setup:

  • Private network: TestNET1, VLAN ID 10
  • Region 1: DE1 (Frankfurt) — CIDR 10.10.0.0/16, gateway 10.10.0.1
  • Region 2: SBG5 (Strasbourg) — CIDR 10.11.0.0/16, gateway 10.11.0.1
  • Both regions were added to the same TestNET1 network via the Public Cloud manager (Private Network → Regions (vRack) → Add Private Network), confirmed showing as one network with two regional rows.
  • vRack pn-1330697 is active and ProjectTest1 is listed as an attached service.

Instances:

  • Frankfurt VM: b3-16-2026_07_08-16-24, private IP 10.10.2.33
  • Strasbourg VM: b3-16-2026_07_10-11-56, private IP 10.11.1.66

Problem:

  • ping 10.11.1.66 from the Frankfurt VM → 100% packet loss
  • ping 10.10.2.33 from the Strasbourg VM → 100% packet loss
  • Pinging the local gateway itself from within each VM also times out (e.g., ping 10.10.0.1 from Frankfurt, ping 10.11.0.1 from Strasbourg) — both 100% loss
  • Windows Firewall inbound rule "File and Printer Sharing (Echo Request - ICMPv4-In)" is enabled on both VMs, so this isn't a host-level firewall issue
  • route print on the Strasbourg VM shows a correct default route via 10.11.0.1 (metric 16) — routing configuration on the VM side looks as expected; the issue appears to be upstream of the instance

Regards,
Manos

2

Hi,

https://network.status-ovhcloud.com/ maybe?

3

I don't think there is an ovh network problem. My virtual machines are in Strasbourg (SBG5) and Frankfurt (DE1). The "Current Events" are about problems in GRAvelines Area.

4

You should call support to get a ticket number (which you can put here), I think.
There are multiple people complaining about the RZO right now (but haven’t seen this specific peculiarity on UDP).

5

I can't create a ticket. The OVH support system is not working! :frowning:

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6

by phone?

7

Luckily I was able to send a ticket.

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8

Hello @cyberlogic

All you have left to do is call OVH support at +33 9 72 10 10 07.
Preferably between 8 a.m. and 9 a.m. in the morning, or around 3 p.m. when there’s less waiting.

Or on Twitter @ovh_support_fr or #OVHcloudsupport

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