Download - Workshopvin7 Virtual Private Ad Hoc Networks
Virtual Private Ad Hoc Networks
Next-generation network communication
2UGent
Current and future evolution
4G communication networks
Evolution towards a “network of networks”, integrating different technologies (WLAN, UMTS, Ad Hoc…)Characteristics: IP-based, broadband, mobility, heterogeneityConvergence of networking devices and consumer electronics (e.g. cameras, TV…) Public WLAN
Private W
LAN -W
PA
N
IP-based core
InternetConsequences?
3UGent
Consequences and observations
ConsequencesConnectivity anywhere, at any time and from any deviceBigger and bigger (users, devices, services…)
Overwhelming, security risks, management…More and more networked devices supporting people in their daily life
ObservationThese large networks do not meet many of the user’s communication needs
Communication often takes place within a limited context or scope, e.g.Work related communication: projects, customers, students…Personal communication: friends, family…
And thus involves a limited (dynamic, mobile) subset of devices that communicate
In a secure fashionIn a self-organising and easy to manage way
Difficult to setup, configure, maintain and manageE.g. configuration of every separate application, wireless networks…
New communication paradigm needed!
4UGent
New communication paradigm
Trend towards network virtualization:4G IP network = carrier that provides end-to-end connectivityOn top: multiple virtual networks that logically structure the network and its services/resources into small secure communities
Deployment of ad hoc techniquesFormed when needed according to user needs and contextSelf-organizing and self-maintainingDealing with distributed, mobile and dynamic characteristics
= VPAN (Virtual Private Ad Hoc Network)
5UGent
VPAN: definition and network view
DefinitionA secure and self-organizing virtual overlay network of distributed nodes deploying ad hoc network techniques and private addressingSecure: both in terms of networking and applications and services
Phys
ical
net
wor
k
VPAN
: log
ical
net
wor
k
VPAN data
Encrypted and/or
tunneled VPAN data
6UGent
Applications
Multi-user gamesClosed P2P communities
Entertainment
Personal networks: overlay of all your personal devicesHealth care network (e-health)
Personal networking
Cab network, public transport networks, surveillance systems, touristic information, building automation, e-health networks...
Commercial and civilian environments
Virtual classrooms, project collaborationsEducation
Overlay network between collaborating people: within a department, between people at a construction site, monitoring networks, virtual service providersEnterprise networking
Networks with family, friendsSocial networks
Rescue people (police men, fire fighters...) organized in teamsEmergency networks
VPAN members
7UGent
VPAN: future view
8UGent
VPAN: future view
9UGent
VPAN: future view
10UGent
VPAN: future view
11UGent
VPAN: future view
12UGent
VPAN: future view
13UGent
VPAN Gateway
VPAN Gateway
VPAN Gateway
VPAN implementation – components/concepts
Cluster formation• Trust relationship• Secure neighbour discovery• Automatic VPAN IP address assignment• Intra-cluster ad hoc routing• Universal convergence layer
VPAN Cluster 2 = Home Cluster
VPAN Cluster 3 = Office Cluster
VPAN Member
VPAN establishment• Secure registration• Dynamic tunneling (NAT bypassing)• Inter-cluster ad hoc routing• Mobility management• Broadcasting support
Service discovery and service use
Use case: Personal Network
VPAN Cluster 1 = Hotel Cluster
14UGent
Demo - story line