Challenge 05

Issued:

24 May 2002

Details:

A network has staff and student computers connect to the same port of a router. All the students are given an IP address in the range from 146.176.150.1 to 146.176.150.127, and the staff are given IP addresses in the range from 146.176.150.128 to 146.176.150.254.

So let's have a challenge...

CHALLENGE...

Which is the subnet mask of this network?

and another....

CHALLENGE...

Show the ACLs that would be applied to the router port which barred students access to an FTP server, located at 146.176.144.10.

and another challenge...

CHALLENGE...

If we had four different groups of students (Group A, B, C and D), how might the IP addresses be arranged so that differing filter properties can be applied to each group.

and another challenge...

CHALLENGE...

If students were allowed to change the network settings on their machines, what technique could be used by a student to gain access to the FTP server, from one of the student assigned IP addresses. What method(s) would/could be used to overcome this?

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