nanog mailing list archives
Re: SMURF amplifier block list
From: "Alex P. Rudnev" <alex () Relcom EU net>
Date: Sat, 18 Apr 1998 22:44:56 +0400 (MSD)
What about people who didn't subnet their class B on the eight bit boundry, but made larger subnets instead? What about the class B that doesn't appear to be subnetted at all? What about supernetted class C networks? A trailing .255 can be a valid host.
And what's worng? If they di nit subnet their B network, the tail of address should be .255 too. If someone have particular .255 host - OK, you should not be able to ping it, not more. The small fee for the free-of-smurfing-from-your-network.
Why don't use the filter deny icmp any 0.0.0.255 255.255.255.0 echo-request
Just now, USA's ISP seems to be absolutely helpless facing SMURF. A lot of networks do not block aroadcast echo-request's; no one even know how to trace thos 'echo-request' packets by their network... may be I am wrong, and it's because there is _a lot of ISP_ there, and even a few af them who do not know how to fight against SMURF compose a good backet - I do not know. Really; does anyone know any sucsessfull attempts to search for the smurfer? What penalty was provided for this hackers? Does exist some legitimate way to establish a lawsuite against them (when they'll be located - last is the only matter of qualification for their nearest ISP, not more).
Current thread:
- Re: SMURF amplifier block list, (continued)
- Message not available
- Re: SMURF amplifier block list Jay R. Ashworth (Apr 14)
- Re: SMURF amplifier block list John Hawkinson (Apr 14)
- Re: SMURF amplifier block list Randy Bush (Apr 14)
- Re: SMURF amplifier block list Stephen Sprunk (Apr 14)
- Re: SMURF amplifier block list jlixfeld (Apr 17)
- Re: SMURF amplifier block list Dean Anderson (Apr 17)
- Re: SMURF amplifier block list Al Reuben (Apr 17)
- Re: SMURF amplifier block list Alex P. Rudnev (Apr 18)
- Re: SMURF amplifier block list Dan Boehlke (Apr 18)
- Re: SMURF amplifier block list Dean Anderson (Apr 18)
- Re: SMURF amplifier block list Alex P. Rudnev (Apr 18)
- Re: SMURF amplifier block list Dan Boehlke (Apr 18)
- Re: SMURF amplifier block list Jeremiah Kristal (Apr 19)
- Re: SMURF amplifier block list Brandon Ross (Apr 20)
- Re: SMURF amplifier block list Dean Anderson (Apr 20)
- Re: SMURF amplifier block list Dave Andersen (Apr 20)
- Re: SMURF amplifier block list Jeremy Porter (Apr 20)
- Re: SMURF amplifier block list Brandon Ross (Apr 22)
- Re: SMURF amplifier block list Jason Lixfeld (Apr 24)
- Re: SMURF amplifier block list jlixfeld (Apr 20)
- Re: SMURF amplifier block list Alex P. Rudnev (Apr 20)