Cloud SWG: General Product Maintenance: Zurich (GCHZU), Ankara (GTRAN) January 19, 2026

Broadcom will perform general maintenance to the Cloud SWG POPs in Zurich (GCHZU) and Ankara (GTRAN). This maintenance will begin on January 19, 2026 at 18:00 UTC lasting for a duration of up to 6 hours. This maintenance includes the addition of ingress addresses to the site. Carefully review the information below to avoid disruption of service.

Impact

• Expect the sites to be completely unavailable during the maintenance window.
• Ingress IP addresses will be expanded for WSS Agent traffic so it is imperative to adjust access control lists appropriately in case you are using this access method.

Ingress IP Addresses:

• Zurich (GCHZU):
  • 148.64.11.164 - NO CHANGE
  • 35.216.128.144/28 - NEW on January 19, 2026
• Ankara (GTRAN):
  • 148.64.11.164 - NO CHANGE
  • 35.216.128.144/28 - NEW on January 19, 2026

Egress IP Addresses:

• Zurich (GCHZU):
  • 148.64.11.0/24 - NO CHANGE
  • 2604:b040:13:1300:2::/80 - NO CHANGE
• Ankara (GTRAN):
  • 199.247.32.64/27 - NO CHANGE
  • 2604:b040:13:1300:3::/80 - NO CHANGE

Required Action by Connection Method prior to January 19, 2026

• IPsec: Switch to your secondary tunnel prior to the maintenance window, for the duration of the maintenance.
• WSS Agent, Symantec Enterprise Agent: Update any firewall rules regulating connectivity with Cloud SWG to allow traffic to pass to/from the IP networks listed above. Failure to make these changes could prevent users from connecting to Cloud SWG, or authenticating against the service using the Auth Connector (where applicable) after the maintenance. During the maintenance, agent traffic will be automatically redirected by the service to the nearest site.
• Explicit proxy and proxy forwarding: Customers directing traffic to proxy.threatpulse.net will be automatically redirected by the service to the nearest alternate site during the maintenance window.

Technical Support

Experiencing issues? Contact technical support by visiting: https://support.broadcom.com/security. For service status and maintenance updates visit and subscribe to Broadcom Service Status: https://status.broadcom.com/services/cloud-secure-web-gateway.