nanog mailing list archives
Re: Interesting new spam technique - getting a lot more popular.
From: "Andrew - Supernews" <andrew () supernews net>
Date: Wed, 14 Jun 2006 17:58:14 +0100
"Mikael" == Mikael Abrahamsson <swmike () swm pp se> writes:
On Wed, 14 Jun 2006, Christopher L. Morrow wrote:is it really that hard to make your foudry/extreme/cisco l3 switch vlan and subnet??? Is this a education thing or a laziness thing? Is this perhaps covered in a 'bcp' (not even an official IETF thing, just a hosters bible sort of thing) ?
Mikael> This problem is fixed by following the BCP regarding spoof Mikael> filtering, Only if you also filter _OUTGOING_ traffic, by port, to allow only the destination IPs that the customer equipment should be seeing. Filtering the ingress direction (customer equipment -> your network) does not help (until _everyone_ does it), since the spammer only needs to _receive_ traffic with the hijacked IP, not send it (that can be done from the other corner of the spammer's triangle route). -- Andrew, Supernews http://www.supernews.com
Current thread:
- Interesting new spam technique - getting a lot more popular. Suresh Ramasubramanian (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Christopher L. Morrow (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Suresh Ramasubramanian (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Christopher L. Morrow (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Suresh Ramasubramanian (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Adam Rothschild (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Christopher L. Morrow (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Mikael Abrahamsson (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Andrew - Supernews (Jun 14)
- Re: Interesting new spam technique - getting a lot more popular. Edward B. DREGER (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Erik Haagsman (Jun 14)
- Re: Interesting new spam technique - getting a lot more popular. Suresh Ramasubramanian (Jun 13)
- Re: Interesting new spam technique - getting a lot more popular. Richard A Steenbergen (Jun 14)
- Re: Interesting new spam technique - getting a lot more popular. Matt Buford (Jun 14)
- Re: Interesting new spam technique - getting a lot more popular. Richard A Steenbergen (Jun 14)
- Re: Interesting new spam technique - getting a lot more popular. Bill Nash (Jun 14)
- Re: Interesting new spam technique - getting a lot more popular. Chris Hills (Jun 15)
- Re: Interesting new spam technique - getting a lot more popular. Mikael Abrahamsson (Jun 15)
- RE: Interesting new spam technique - getting a lot more popular. Kristal, Jeremiah (Jun 15)
- RE: Interesting new spam technique - getting a lot more popular. Mikael Abrahamsson (Jun 15)
- Re: Interesting new spam technique - getting a lot more popular. Christopher L. Morrow (Jun 13)