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Updated by Derek Jansen on Jun 14, 2021
Article Code: kb/1412

Description

This article desribes the network filtering setup for the Public Cloud platform. By default, the platform does not filter any network traffic except in the specific cases outlined in this article.

SMTP Traffic Filtering for Shared Data Center Egress

As of 26 May 2021, the platform began blocking SMTP traffic traversing the shared egress NAT in every data center. For any servers without a public IP address assigned, SMTP traffic will be filtered at our firewall.

To avoid SMTP traffic filtering, a public IP address must be assigned to the server per the instructions at https://www.ctl.io/knowledge-base/network/lumen-cloud/how-to-add-public-ip-to-virtual-machine.

Lumen Edge Services Accelerate data and applications for next-gen workloads via ultra-low latency connectivity and distributed compute.

Cloud Management Cloud management options meeting a full spectrum of needs. From fully-managed by Lumen to self-service by the customer, as appropriate for the workload.

Platforms Build out simple or complex solutions from your choice of Hybrid IT Platforms, suitable for everything from DevOps and Testing Environments to Enterprise Computing.

Servers Embark on a hybrid IT journey with your choice of Public Cloud, Bare Metal and Private Cloud Servers.

Storage & Backup Everything you need to support your cloud storage and business continuity requirements.

Content Delivery Network Maximize performance and user experience when high performance is essential.

Networking Increased reliability and faster performance in the cloud and across Hybrid IT environments.

Security A broad array of managed security options layered to defend Cloud/Hosting workloads.

Managed Services Save time and increase productivity with IT management services from Lumen’s highly-skilled teams.

Application Services Manage and provision faster and more efficiently.

Database

Services

Subscribe to Lumen Cloud Knowledge Base

Network Filtering

Updated by Derek Jansen on Jun 14, 2021
Article Code: kb/1412

Description

SMTP Traffic Filtering for Shared Data Center Egress

Lumen Edge Services Accelerate data and applications for next-gen workloads via ultra-low latency connectivity and distributed compute.

Cloud Management Cloud management options meeting a full spectrum of needs. From fully-managed by Lumen to self-service by the customer, as appropriate for the workload.

Platforms Build out simple or complex solutions from your choice of Hybrid IT Platforms, suitable for everything from DevOps and Testing Environments to Enterprise Computing.

Servers Embark on a hybrid IT journey with your choice of Public Cloud, Bare Metal and Private Cloud Servers.

Storage & Backup Everything you need to support your cloud storage and business continuity requirements.

Content Delivery Network Maximize performance and user experience when high performance is essential.

Networking Increased reliability and faster performance in the cloud and across Hybrid IT environments.

Security A broad array of managed security options layered to defend Cloud/Hosting workloads.

Managed Services Save time and increase productivity with IT management services from Lumen’s highly-skilled teams.

Application Services Manage and provision faster and more efficiently.

Database

Services

Subscribe to Lumen Cloud Knowledge Base

Network Filtering

Updated by Derek Jansen on Jun 14, 2021 Article Code: kb/1412

Description

SMTP Traffic Filtering for Shared Data Center Egress

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Updated by Derek Jansen on Jun 14, 2021
Article Code: kb/1412