On Wed, Aug 25, 1999 at 03:25:38PM +0100, Proctor, Matthew wrote:
> The netbios packages can be blocked by using ipfwadm can't they? Although I
> dont klnow if they would be blocked before pppd detected them.
Yes, ipfwadm can block netbios packets. They would be blocked before
pppd even sees them. Firewall rules are checked when the packet first
enters the system and just before they are sent out (if the packet makes it
that far) with an intervening check to see if the packet needs to be
masqueraded.
BTW, netbios packets are sent to ports 137,138(both tcp and udp) and to
port 139 (only tcp). grep /etc/services for other ports you wish to
block.
--
Gyepi Sam --+-- Designer/Programmer --+-- Network/System Administrator
[EMAIL PROTECTED] --+-- http://www.praxis-sw.com/gyepi
In the long run we are all dead. -- John Maynard Keynes
-
To unsubscribe from this list: send the line "unsubscribe linux-diald" in
the body of a message to [EMAIL PROTECTED]
