From: Biondino, Joseph (joseph.biondino@au.unisys.com)
Date: Fri Sep 12 2003 - 02:35:08 GMT-3
Also don't for get that IP directed broadcast is configured on the interface that the broadcast is headed for. It is treated as a unicast until that point... so in answer to your question either turn off IP directed broadcast on the destination network port or secure it with an access-list.
Kind regards,
Joseph Biondino
Network Specialist
UNISYS
Network Command Centre
115 - 117 Wicks Rd
North Ryde NSW 2113
Phone: 02 9857 3149
Group:  02 9390 1107
Fax:     02 9857 3122
 -----Original Message-----
From: 	Biondino, Joseph  
Sent:	Friday, 12 September 2003 3:29 PM
To:	Peng Zheng; ccielab@groupstudy.com
Subject:	RE: Smurf Attack
A simple search on google found your answer:
http://www.cert.org/advisories/CA-1998-01.html
GRRRR!!!
Kind regards,
Joseph Biondino
Network Specialist
UNISYS
Network Command Centre
115 - 117 Wicks Rd
North Ryde NSW 2113
Phone: 02 9857 3149
Group:  02 9390 1107
Fax:     02 9857 3122
 -----Original Message-----
From: 	Peng Zheng [mailto:zpnist@yahoo.com] 
Sent:	Friday, 12 September 2003 3:23 PM
To:	ccielab@groupstudy.com
Subject:	Smurf Attack
When asked to prevent Smurf Attack, should I disable
ip directed-broadcast on all interface or only
ethernet interface?
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