Computer Networking And Management
Submitted by madnotes on May 17, 2008
- Category: Technology
- Words: 7696
- Pages: 31
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Computer Networking And Management
Task 1
a) In context of firewalls, explain the operation of a packet filtering router and an application gateway (sometimes referred as an application proxy)
What does firewall means? As far as my knowledge goes, firewall is some kind of system or group of systems which enables to control access and sets privileges between two networks. The most common boundary in firewall is between a trusted and an un-trusted network. A perfect and secure firewall would not interfere with users’ activities or any transfers between authorized networks. Network firewalls mainly operate in different layers of the OSI model. The lowest layer in which the firewall operates is in the...
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