Hello Excellers

I'm looking for a VBA routine how shows data in line's like a IP-network

Data looks like this.

data:

1 2
1 3
1 4
2 8
2 10


on 1 a star with connection to 2,3,4
on 2 a star with connection to 8 and 10. ( the connection to 1 is al ready
made)

How helps me to get started?
Is there a other office program what can help me out?

Thanks

Rolf