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RE: [FW1] How do I stop being smurfed?



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-----Original Message-----
From: Jonas Thambert [mailto:[email protected]]
Sent: Wednesday, 4 October 2000 2:53 AM
To: 'Tim Gollschewsky'; Firwall-1 List
Subject: RE: [FW1] How do I stop being smurfed?



I better hope you're not a broadcast domain.
Then you might be blacklisten.
I dont remember the URL ro the list,
maybe someone else can help me with this one..
Ofcourse you can prevent both outgoing and incoming
echo-requests/repleys with the router.

/Jonas








-----Original Message-----
From: Tim Gollschewsky [mailto:[email protected]]
Sent: den 3 oktober 2000 15:27
To: Firwall-1 List
Subject: Re: [FW1] How do I stop being smurfed?



Does this stop me from being smurfed?

Or just stop me from being used as a smurf reflector?

On Tue, Oct 03, 2000 at 03:15:51PM +0200, Ejvind Kristian spoke thusly:
> > Is there ANYTHING else I can do?
> 
> If you've got a solaris fw-1, add
> 
> ndd -set /dev/ip ip_forward_directed_broadcasts
> ndd -set /dev/ip ip_respond_to_address_mask_broadcast
> 
> to your startup scripts.
> 
> If you're using Cisco's, add
> 
> no ip directed-broadcast
> 
> to _all_ interface sections on all routers. (IOS 12.0
> and later disables directed broadcasts by default)
> 
> /Kristian
> 
> -----------------------------------------
> Kristian Ejvind - [email protected]
> System admin at SPP Investment Management 
> -----------------------------------------


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