Scheduled maintenance for Changing external NAT IP in Norway from legacy IPs 193.75.92.35 and 193.75.91.4 to Visma owned IP 91.123.49.65 - Please take action if needed!
Saturday, 8th of February 2025, Datacenter Network Team will change the external NAT IP in Norway from legacy IPs 193.75.92.35 and 193.75.91.4 to Visma owned IP 91.123.49.65, starting at 20:00 CET until 21:00 CET and during this time, we don’t expect downtime. However existing external connections might be impacted. As we are implementing a project for building more redundancy and resilience inside Visma Norway Datacenter, we need to change the legacy IPs. Unfortunately there is one NAT for all our outgoing connections that is still in legacy 193.75.92.35 and 193.75.91.4. We need to convert it to 91.123.49.65
All Legacy solutions need to update their whitelisting they have outside Visma Datacenter with those IPs from 193.75.92.35 and 193.75.91.4 to 91.123.49.65, otherwise the existing integrations you might have will stop working.
Assets Involved: Legacy services that are still behind old Main Firewall. Servers in range 10.55.A.B and 10.56.C.D ips
Date: 8th of February 2025 Timeline: The change window will be between 20:00 CET and 21:00 CET. Downtime: None, if you upgrade your whitelisting before the change.
Test plan: Each solution representative needs to test their external integration.
Contact If you have any questions or concerns, please contact our IT Service Desk:
Email: it-servicedesk@visma.com (during office hours) Phone: +47 21 60 78 42 (when the matter is urgent, inside or outside office hours) Service Owner Datacenter Network: Kastytis Valadkevičius