PHWinfo - Afficher un message - Why most TCP/IP implementations are designed to allow such packets?

03/04/2007, 16h25

On Apr 3, 9:38 am, "lostlander" <lostlander....@gmail.com> wrote:
> Why most TCP/IP implementations are designed to allow sending packets
> whose src IP or Mac adderss is not the sender's real address?!

AFAIK, no TCP/IP implementation is designed in such a manner. Please
provide references for your implied assertion.

(OTOH, many low-level media access implementations permit the crafting
of arbitrary packets, some of which may resemble an IP packet with an
incorrect sender IP address.)

> In my
> opinion, this causes many problems, especially lead to some virus.

Yes, those who break the rules can cause problems. AFAICT, that's the
object of breaking the rules.

03/04/2007, 16h25	#2
Lew Pitcher Messages: n/a Hébergeur:	Re: Why most TCP/IP implementations are designed to allow such packets? On Apr 3, 9:38 am, "lostlander" <lostlander....@gmail.com> wrote: > Why most TCP/IP implementations are designed to allow sending packets > whose src IP or Mac adderss is not the sender's real address?! AFAIK, no TCP/IP implementation is designed in such a manner. Please provide references for your implied assertion. (OTOH, many low-level media access implementations permit the crafting of arbitrary packets, some of which may resemble an IP packet with an incorrect sender IP address.) > In my > opinion, this causes many problems, especially lead to some virus. Yes, those who break the rules can cause problems. AFAICT, that's the object of breaking the rules.