Re: Software/Hardware firewall interaction?



Sebastian Gottschalk wrote:
galt_57@xxxxxxxxxxx wrote:
Sebastian Gottschalk wrote:
[...]
Question: Connect to http://bbc.co.uk and take a look at the reply. The
source adress of the related packets is

[ ] 212.58.224.131
[ ] your public adress
[ ] your router's local adress
[ ] your local adress
[ ] 127.0.0.1

Using what software?

None, it's trivial if you just got a little clue about NAT.
But if you really need a network sniffer, then try Ethereal.

Anyway, didn't you get the point? Without a big and deep comprehensive
understanding of TCP/IP you cannot achieve any security through
host-based packet filters or firewalls, no matter what certain colorful
click-here-wizards wants to tell you.

Ok, so what books on TCP/IP would you suggest? Any in particular?

.



Relevant Pages

  • Re: Software/Hardware firewall interaction?
    ... source adress of the related packets is ... your public adress ... your router's local adress ...
    (comp.security.firewalls)
  • Re: Software/Hardware firewall interaction?
    ... source adress of the related packets is ... your public adress ... your router's local adress ...
    (comp.security.firewalls)
  • Re: Software/Hardware firewall interaction?
    ... source adress of the related packets is ... your router's local adress ... Building Internet Firewall ... But at first I recommend reading and understanding the relevant RFCs. ...
    (comp.security.firewalls)
  • starman.ee???
    ... Remote Adress: pc78.host2.starman.ee:3448 ... State: ESTABLISHED ... Meine Fragen: WArum steht bei Local ADress nicht:80 sondern:http? ...
    (microsoft.public.de.german.win2000.networking)