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An Example of IPv6 Necessity in the Greek School Network

An Example of IPv6 Necessity in the Greek School Network. Athanassios Liakopoulos (aliako@grnet.gr) Greek Research & Technology Network 6DEPLOY project. Outline. The GSN – Introduction The Problem The IPv4 Solution (?) The IPv6 Alternative Similar Cases. The GSN - Introduction.

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An Example of IPv6 Necessity in the Greek School Network

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  1. An Example of IPv6 Necessity in the Greek School Network Athanassios Liakopoulos (aliako@grnet.gr) Greek Research & Technology Network 6DEPLOY project

  2. Outline The GSN – Introduction The Problem The IPv4 Solution (?) The IPv6 Alternative Similar Cases IPv6 necessity in GSN

  3. The GSN - Introduction • The Greek School Network (GSN) interconnects ~15.000 school units in Greece • Each school unit (usually) has … • two public IPv4 addresses, one for the edge router and one for the local (school) server. • Multiple private addresses used for interconnecting the local PCs IPv6 necessity in GSN

  4. The Problem • How it is possible to upgrade the software of the PC labs and other PCs? • Software upgrades, security patches, install new applications, etc. • Technical challenged • PCs are located behind a NAT gateway • PCs may be assigned to multiple networks, e.g. lab, administration, etc • PCs use different (versions of) operating systems • PCs are often moved between the networks, e.g. during hardware upgrades IPv6 necessity in GSN

  5. The IPv4 Solution (?) • Method A: Send administration personnel to perform the upgrades manually • Time consuming task, e.g. a security update may take weeks to be applied in all PC-labs in all sites • Expensive method, especially in terms of human resources • Method B: Use port forwarding at the edge routers • Simple procedure, though, significant administration overhead • Error prone process as PCs may be relocated IPv6 necessity in GSN

  6. The IPv4 Solution (?) • Method C: Use a remote management tools • Software client necessary to be installed in each connected PC. • Not applicable to all nodes, e.g. wifi access points • Expensive solution due to the large number of sites and end systems • Limitations may arise due to port forwarding conflicts and insufficient scripting support IPv6 necessity in GSN

  7. The IPv6 Alternative • IPv6 is enabled in each PC and any other network node • Upgrades can be handled centrally, based on built-in scripts and tools • Policies can easily applied based on IPv6 address (& network) IPv6 necessity in GSN

  8. Similar Cases • A services provider may upgrade more than one set-on boxes at subscribers network • A system administrator may upgrade server farms without the need of a local application (?) server • A user may upgrade multiple sensors firmware over the network IPv6 necessity in GSN

  9. http://www.sch.gr/ • Athanassios Liakopoulos • aliako@grnet.gr IPv6 necessity in GSN

  10. IPv6 necessity in GSN

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