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| Subject: | Re: VALN hopping |
|---|---|
| Date: | Fri, 30 Sep 2005 13:48:07 -0400 |
Agreed. I would not trust logical seperation for a DMZ. On 9/28/05, Hayes, Ian <Ian.Hayes@wynnlasvegas.com> wrote:
Safeguard against traversing VLANs is getting better, but I still don't like the idea of having mixed security VLANs on the same switch. There are still a number of exploits that have a chance of working, such as CAM table flooding. IMHO, good design physically separates the security zones- you really can't rely that logical constraints are going to always work, but then I'm a belt-and-suspenders kind of guy when it comes to network design. I'm expecting something to fail. Ian Hayes | Senior Systems Engineer Wynn Las Vegas 3131 South Las Vegas Blvd, Las Vegas, NV 89109 Ph (702) 770-3252 | Cell (702) 266-6002 Ian.hayes@wynnlasvegas.com-----Original Message----- From: josh@tstc.edu [mailto:josh@tstc.edu] Sent: Wednesday, September 28, 2005 9:59 AM To: security-basics@securityfocus.com Subject: VALN hopping WWe are having a heated discussion about using VLAN's as a type ofDMZ, soI am asking the experts. I prsonally like to see physical isolation; however, our network person doesn't feel there is a threat of VLAN hopping. Please let me know your opinions. Thank you,
-- ME2 <http://www.santeriasys.net/>
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