What is this

This is a simple project of mine where I tried to approximate what an ISP does in their network. It is probaly much less sophisticated than what is used in the real world and not that scalable, but it helped me learn quite a bit about the way networks work.

ISP features:

• The ISP can export its network and import others' networks
• The ISP has a website
• The ISP has a database where it stores its own clients
• The ISP has a DNS server
• The ISP is capable of limitting the traffic and speed of its clients
• The ISP has two types of clients: Companies (static IPs) and Users (dyanmic IPs + NAT)

Basic details about the network:

• All the networks ever are supposed to be in the 10.0.0.0/8 segment
• The segment used for all the clients is 10.206.0.0/16
• User network is 172.172.0.0/16
• The BGP network is assumed to have prefix 10.10.10.0/24
• ISP's BGP IP is 10.10.10.206
• ISP's ASN is 65206
• ISP's private network prefix is 192.168.168.0/24

A little file tour

In the scripts/ folder you can find some setup routines I used for my machines to make the network setup less repetetive. The DESIGN.md file contains the network topology plus some extra details.