CenturyLink Communications UK Limited

CenturyLink Network Protection Service

The service accompanies CenturyLink Internet Circuits for customers who require upstream rate limiting and filtering.

The service cost-effectively mitigates risk of DDoS attacks by the application of Rate limiting, ACLs and Null routing.

The service is provided with a 30 minute SLA guaranteed response time for volumetric DDoS attack.


  • Threat Monitoring 24 x 7 365 globally deployed SOC Infrastructure
  • BGP router filtering
  • Transit Interface protection
  • Ongoing protection by up to 50 permanent access control lists
  • Null routing and SOC triggered Blackholing
  • Identification of attacks and development and application of custom filters
  • Ongoing protection by up to 50 permanent access control lists
  • Up to 2 changes per month supported with the service
  • Limited log reporting available on request
  • 30 minute SLA to respond to volumetric attacks


  • 24/7/365 Security Operations Centre Support
  • Leverages the expertise of CenturyLink UK SOC staff
  • Peace of mind 30 minute SLA to mitigate against attacks
  • Upstream custom filtering and rate limiting
  • Null routing and SOC triggered Blackholing reactively
  • Flexible solution - 2 changes a month supported
  • Tailored solution agreed with customer
  • Leverages CenturyLink Threat Research capability
  • Full suite of services can be complimented by DDoS Scrubbing
  • Handle volumetric attacks via world’s largest network of Scrubbing centres


£1500 to £15000 per instance per month

Service documents

G-Cloud 10


CenturyLink Communications UK Limited

Mike Thomas

0330 060 9328


Service scope

Service scope
Software add-on or extension No
Cloud deployment model Private cloud
Service constraints This is low cost entry level DDoS mitigation using permanent as well as reactive/emergency filters if necessary. This service is complimentary to DDoS scrubbing rather than a replacement for comprehensive DDoS Scrubbing service offered by CenturyLink.
System requirements No specific software licences or anti-virus technology for virtual machines.

User support

User support
Email or online ticketing support Email or online ticketing
Support response times Customers can reach support agents 24/7. Customers can manage users instantly via a web portal and emails are responded to within 24hrs (48hrs Saturday & Sunday)
User can manage status and priority of support tickets No
Phone support Yes
Phone support availability 24 hours, 7 days a week
Web chat support No
Onsite support Yes, at extra cost
Support levels CenturyLink offers a financially backed availability SLA. Below 99.9% availability (total outage, solution cannot be reached via any method) CenturyLink will credit customers monthly invoice in line with the percentage of time that the solution was unavailable (e.g. 95% availability will entitle customer to 5% credit)
Support available to third parties Yes

Onboarding and offboarding

Onboarding and offboarding
Getting started Yes, customers are assigned a 'Customer Success Manager'
Service documentation Yes
Documentation formats
  • HTML
  • PDF
End-of-contract data extraction Not possible
End-of-contract process Service auto renews unless cancelled

Using the service

Using the service
Web browser interface Yes
Supported browsers
  • Internet Explorer 9
  • Internet Explorer 10
  • Internet Explorer 11
  • Microsoft Edge
  • Firefox
  • Chrome
  • Safari 9+
  • Opera
Application to install Yes
Compatible operating systems
  • Android
  • IOS
  • Linux or Unix
  • MacOS
  • Windows
  • Windows Phone
Designed for use on mobile devices Yes
Differences between the mobile and desktop service None
Accessibility standards None or don’t know
Description of accessibility The service is configured by interfacing with the CenturyLink Global Security Operations Centre
Accessibility testing None that CenturyLink are aware of
What users can and can't do using the API Embed the platform into 3rd party software and websites. Link provisioning to 3rd party solutions such as Active Directory
API documentation Yes
API documentation formats PDF
API sandbox or test environment Yes
Customisation available Yes
Description of customisation Add custom logo and custom landing page


Independence of resources Change management policies are linked to capacity utilisation. The service is upgraded when capacity reaches 80%. Furthermore, there are 5 regional instances that act as additional capacity and failover for each other


Service usage metrics No


Supplier type Not a reseller

Staff security

Staff security
Staff security clearance Other security clearance
Government security clearance Up to Security Clearance (SC)

Asset protection

Asset protection
Knowledge of data storage and processing locations Yes
Data storage and processing locations
  • United Kingdom
  • European Economic Area (EEA)
  • EU-US Privacy Shield agreement locations
  • Other locations
User control over data storage and processing locations No
Datacentre security standards Complies with a recognised standard (for example CSA CCM version 3.0)
Penetration testing frequency At least once a year
Penetration testing approach ‘IT Health Check’ performed by a CHECK service provider
Protecting data at rest Physical access control, complying with CSA CCM v3.0
Data sanitisation process Yes
Data sanitisation type Deleted data can’t be directly accessed
Equipment disposal approach Complying with a recognised standard, for example CSA CCM v.30, CAS (Sanitisation) or ISO/IEC 27001

Data importing and exporting

Data importing and exporting
Data export approach Not possible
Data export formats
  • CSV
  • Other
Other data export formats MS Excel
Data import formats Other
Other data import formats .msg

Data-in-transit protection

Data-in-transit protection
Data protection between buyer and supplier networks IPsec or TLS VPN gateway
Data protection within supplier network IPsec or TLS VPN gateway

Availability and resilience

Availability and resilience
Guaranteed availability 99.9% Service Availability
Approach to resilience 5 POP geographically dispersed architecture on an MPLS acting as their own primary with each other as a back-up
Outage reporting Internal testing/ usage

Identity and authentication

Identity and authentication
User authentication needed Yes
User authentication Username or password
Access restrictions in management interfaces and support channels Email address and password
Access restriction testing frequency At least every 6 months
Management access authentication Username or password

Audit information for users

Audit information for users
Access to user activity audit information Users have access to real-time audit information
How long user audit data is stored for At least 12 months
Access to supplier activity audit information Users have access to real-time audit information
How long supplier audit data is stored for At least 12 months
How long system logs are stored for At least 12 months

Standards and certifications

Standards and certifications
ISO/IEC 27001 certification No
ISO 28000:2007 certification No
CSA STAR certification No
PCI certification No
Other security certifications No

Security governance

Security governance
Named board-level person responsible for service security Yes
Security governance certified Yes
Security governance standards ISO/IEC 27001
Information security policies and processes SOC2

Operational security

Operational security
Configuration and change management standard Supplier-defined controls
Configuration and change management approach CenturyLink have a strict Change management control policy in line with our ISO20k certification.
The change process workflow can be summarised as follows:
• Change creation;
• Two Stage Change Approval (Quality / Technical);
• Identification of affected customers
• Customer notification.
• Implementation (generally between 00:00 and 06:00 Local time)
Vulnerability management type Supplier-defined controls
Vulnerability management approach CenturyLink global security team receive threat information from a number of different sources including active monitoring of CenturyLink’s products and services and infrastructure, along with regular vendor vulnerability updates and information provided by communities of interest. CenturyLink operate a regular patching policy and process along with a Vulnerability Management Forum for the review, risk management, prioritisation, remediation action plan and implementation planning associated with Vulnerabilities identified.
Protective monitoring type Supplier-defined controls
Protective monitoring approach CenturyLink operate an active protective monitoring process for it’s products, services and infrastructure which provides potential security event info to Level 3’s multiple SOC environment for analysis.CenturyLink’s SOC facilities are manned 24 x7x 365 providing as near as possible real-time response to security events with an escalation process to senior management as required.
Incident management type Supplier-defined controls
Incident management approach CenturyLink maintain and operate a security incident process for management of potential security incidents which manages any potential incidents to conclusion. Anyone within CenturyLink can raise a security breach via a dedicated portal which will then be analysed for required action. The process has defined paths of escalation and timeframes for escalation along with criteria for customer notification and response

Secure development

Secure development
Approach to secure software development best practice Supplier-defined process

Public sector networks

Public sector networks
Connection to public sector networks No


Price £1500 to £15000 per instance per month
Discount for educational organisations No
Free trial available No

Service documents

pdf document: Pricing document pdf document: Service definition document pdf document: Terms and conditions
Service documents
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