Problem with Socket

[Mdg]

i'm trying to write a firewall with packet filtering capability and I'm Using
Socket to Sniff Raw IP Packets from my NIC.
is it possible to Block the packet after sniffing?

[Willy Denoyette [MVP]]

Re: Problem with Socket


"Mdg" <Mdg@discussion s.microsoft.com > wrote in message
news:5D5E248A-B865-486B-BF94-7D3C9EFD2DE8@mi crosoft.com...[color=blue]
> i'm trying to write a firewall with packet filtering capability and I'm
> Using
> Socket to Sniff Raw IP Packets from my NIC.
> is it possible to Block the packet after sniffing?[/color]

Not sure this is supposed to be C# question?
Anyway, you can't write a firewall using C# or any other managed code
language, firewalls are running deep in the network stack as a filter driver
in kernel space not in user space, managed code cannot run in kernel space.

Willy.