Author Topic: Network Shield and Router or PFW  (Read 2582 times)

0 Members and 1 Guest are viewing this topic.

Offline Sgt.Schumann

  • Jr. Member
  • **
  • Posts: 72
  • Men of the '303'
Network Shield and Router or PFW
« on: November 14, 2004, 04:35:21 PM »
Is the new "Network Shield" of Version 4.5 required if you also use a Hardware-Router OR a Personal Firewall (e.g. Outpost)?

Offline igor

  • Avast team
  • Serious Graphoman
  • *
  • Posts: 11805
    • AVAST Software
Re:Network Shield and Router or PFW
« Reply #1 on: November 15, 2004, 10:05:10 AM »
Well, it's not "required", but may be useful - the function is somehow different.

Offline Lisandro

  • Avast team
  • Certainly Bot
  • *
  • Posts: 67247
Re:Network Shield and Router or PFW
« Reply #2 on: November 16, 2004, 02:38:34 AM »
I made a compilation of other information about the Network Shield:

A new resident protection module was added to avast! 4.5: the Network Shield. It is meant as a protection against known Internet worms/attacks. It analyses all network traffic and scans it for malicious contents. It can be also taken as a lightweight firewall (or more precisely, an IDS (Intrusion Detection System).

Network Shield protects you from internet worms that spread themselves via various security holes in your system. Typicaly these kind of viruses don't infect files but instead  they attack running processes on your PC (either Windows components or some server programs like SQL Server, IIS etc.). These kind of attacks are not easily catched by ordinary antivirus during file or mail scanning. It is not a duplicate work with Standard Shield.

On anything of speed <= 100 mbps the performance penalty should be negligible (unless you have very old hardware). On gigabit/10gigabit networks it may slowi things down considerably though. Few people are using these speeds to access the Internet...
The best things in life are free.

Offline Sgt.Schumann

  • Jr. Member
  • **
  • Posts: 72
  • Men of the '303'
Re:Network Shield and Router or PFW
« Reply #3 on: November 16, 2004, 10:47:41 PM »
Thank you igor and Technical for the information.  :)