nanog mailing list archives
Re: Interesting new spam technique - getting a lot more popular.
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Wed, 14 Jun 2006 07:17:43 +0200 (CEST)
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) ?
This problem is fixed by following the BCP regarding spoof filtering, if needed, doing the IP source filtering at the switchport instead of at the router level. Treat your colo customers the same way you would residential customers with the same security level.
Whatever the customer himself can change, control. IP spoof filtering, and if your platform supports it, even rewrite the MAC address so it's local to the access cable and not used in your aggregation network (some DSLAM vendors do this, for instance). I haven't seen any switch vendors that does this yet, unfortunately.
-- Mikael Abrahamsson email: swmike () swm pp se
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. Christopher L. Morrow (Jun 13)