BasicInternet:Infrastructure extension

From its-wiki.no

Jump to: navigation, search

Extending the Basic Internet Network

note on use of ASA: each simple router will do the job, need to be adapted based on the capacity to handle

Option 1: DHCP for each sub-network

BasicInternet ExtA.png

Provide each University (or even parts of a University) with an own sub-network.

  • Requires a path from Mikrotik to one ASA

ASA providing different DHCP, f. eks. 172.16.x.x for University A, and 172.16.x.x for University B

  • class B: 172.16.x.x (16 bit for networks, 16 bits for end network - max 65000 users per network)
    • example: need for 5.000 IP addresses = 13 bits for end users, rest for network (20.000 students, 5.000 every day)
  • class A: 10.x.y.z/8 - 8 bit for the network, 24 bits for the end users (> 2million end users)
  • class C: 192.168.1.x/24 - 24 bits for network, and 8 bits for end devices (255 devices)
  • new: supports also classless...

Option 2: Tunnel from each ASA

BasicInternet ExtB.png

Central infrastructure with one ASA

  • each site has an own ASA providing DHCP
  • on-site ASA has a VPN back to the central ASA