Beschreibung
Onsite: 200 hoursOffsite: 100 hours
Main activities for initial IP harmonization planning & analysis
Conduct As-Is Analysis
- As-is analysis & documentation of the current IP address usage. Start building upon current inventories, validate accuracy and comprehensiveness and close any information gaps
- As-Is analysis & documentation of current IP address management tools & processes (How are IP addresses reserved & maintained, when and by whom)
- Analyze overlaps and create comprehensive documentation of all identified IP conflicts, incl. type of conflict, priority, business units/entities/countries involved, etc..
- Analyze ongoing new projects which have impact on IP assignment. E.g. new Cloud services, new Partner interconnection, new Office Locations, DCs etc? and define list of interdependent projects
B: Define To-Be IP Addressing Concept
- Identify and document requirements for the to-be IP address concept.
- Identify and evaluate options (e.g. complete green-field, keep non-conflicting subnets, etc?). Consider especially required effort/complexity to migrate, manageability, network implications to routing complexity (route summarization)
- Align options and agree on target IP address scheme
- Define required network changes and execute to enable accessibility of new target IP address scheme (within routing, firewalls, proxies, etc?)
- Align to-be IPAM solution which will be the new single source of truth, incl. Import/migration of as-is data; align interfaces REST/SOAP etc. for automation of deployments (DevOPs)
- Create documentation and socialize instructions to all relevant teams, how and when to adhere to new standards
C: Define IP harmonization toolkit & strategy
- Evaluate current list of IP conflicts and derive use cases for IP harmonization / conflict resolution (what types of conflict scenarios need to be addressed) ? consider priority of conflicts
- Based on identified use cases, develop possible mitigation scenarios (VPN, proxification, re-addressing, VRF segregation, zScaler, NAT, etc?).
- Define migration scenarios, create technical templates / instructions and test (to extent possible) feasibility (e.g. PoC)
- Define the structure of and start building an application / business service inventory based on identified IP overlaps to prepare for impact analysis and communication in case of IP address changes to certain services/applications
- Gather good practice input from comparable projects / engagement based on good practice
- Evaluate tool options to support IP re-addressing and mitigation scenarios
- Develop and align a governance model to define roles & responsibilities for IP harmonization (and interdependencies)
- Document the overall strategy and instructions in a comprehensive ?toolkit? / ?cookbook? and communicate to and align with all relevant stakeholders (as input to new builds, other transformation activities, new application development, etc?)
Anforderung:
- Inventory of As-Is IP addresses (Which IP subnets are used where for what)
- Description of As-Is processes & tools for IP address management
- Inventory of IP overlaps
- To-Be IP addressing concept
- IP harmonization ?toolkit?/?cookbook?
Professional-Skills
? Strong experience with IP (re-)addressing projects (either in planning and execution)
? Broad understanding of network technologies incl. routing/switching, MPLS/VRF/VPN, firewall (DMZ), IP addressing and IP services (DNS, DHCP) as well as a basic understanding of IP address management practices
? Senior experience with enterprise network design, architecture and business application landscape
? Basic understanding of network security architecture, traffic flows, protocol behaviors and best practices
Projektstart: asap
Projektende: 31.03.2020
Auslastung: nach Absprache
Leistungsort: Essen + Remote