VPN & Firewall

Assignment 2 Resit
VPN & Firewall
Name: Nicolae Grecu
LSST ID: H1809144
UWL ID: 21394816
1. Firewalls are one of the important security devices for networks. It is a
device that filters all traffic between a protected or “inside” network and

a less trustworthy or “outside” network. Write a report that explores the
following questions.
Part (a)
Explain goals that a firewall has, where one goal should not overlap with
another.
 All the traffic from outside to inside and vice versa, passes through the
fire wall
- Multiple levels of firewalls or distributed firewalls
 Only authorized traffic as defined by the local security policy will be
allowed to pass
 The firewall itself is immune to penetration.
- if not designed or installed properly, it can be compromised, in
which case will provide an false sense of security
Part (b)
Figure Q3: An example of firewall configuration
Figure Q3 illustrates a common network topography in which firewall provides
a protective barrier between an untrusted Internet and internal networks
including the DMZ (demilitarized zone) network. Design suitable packets filter
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