Hi,
The removal of directed-brooadcasts is one of the security messures that
is being taken place on the router.
The IP directed broadcast is a datagram which is sent to the broadcast
address of a subnet to which the sending machine is not directly attached.
The directed broadcast is routed through the network as a unicast packet
until it arrives at the target subnet, where it is converted into a
link-layer broadcast.
The directed-broadcasts arp being used in the extremely common and popular
"smurf" denial of service attack, and can also be used in related attacks.
I hope it helps
Gil
-----Original Message-----
From: Howard C. Berkowitz [mailto:[EMAIL PROTECTED]]
Sent: ??? ??? 05 ?????? 2001 06:13
To: [EMAIL PROTECTED]
Subject: Re: ip directed broadcast
>hi all
>
>anyone knows why no ip directed broadcast is always
>set for any interfaces?
>
>
>regards,
>
>suaveguru
RFC 2644 Changing the Default for Directed Broadcasts in Routers. D.
Senie. August 1999. (Format: TXT=6820 bytes) (Updates RFC1812) (Also
BCP0034) (Status: BEST CURRENT PRACTICE)
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