[14698] in North American Network Operators' Group

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Re: Reporting Little Blue Men

daemon@ATHENA.MIT.EDU (Eric Osborne)
Wed Jan 21 23:04:05 1998

From: Eric Osborne <osborne@notcom.com>
To: dave@fast.net (Dave Van Allen)
Date: Wed, 21 Jan 1998 22:55:52 -0500 (EST)
Cc: eric@ccti.net, nanog@merit.edu
In-Reply-To: <4DB4BFFE4768D011954E0000C0815AEDA477EE@fnbdc1.youtools.com> from "Dave Van Allen" at Jan 21, 98 10:36:26 pm

How do you prevent packets from your network with a broadcast address, since 
what defines a "broadcast" address really depends on the subnet mask?



eric


> 
> We prevent ANY packets to or from our network with a broadcast
> address.  We don't filter on a per-machine basis for address
> spoofing, but ALL packets leaving our network must have a valid
> address on our network.  Basically, one user on our network can spoof
> another user on our network, but no users can spoof addresses that
> are not on our network.
> 
> --Eric
> -- 
> Eric Wieling (eric@ccti.net), Chesapeake Communications Corporation
> Sales: sales@ccti.net 504-585-1850, Support: support@ccti.net
> 504-535-5449
> 
> We have changed our name!  Corporate Communications Technology is now
> known as Chesapeake Communications Corporation.
> 


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