Security Basics mailing list archives
RE: GRE Tunnels without IPSEC risks.
From: "David Gillett" <gillettdavid () fhda edu>
Date: Wed, 13 Jul 2011 12:49:20 -0700
The link between the Aruba controller and the VPN server should probably be within the head-office datacenter, so if people are sniffing that, you have much bigger problems. The link between the VPN client end and the AP should also be short and of limited access, but that data is also wirelessly sniffable off the AP. So if you care, you implement WPA/WPA2 on your wireless -- and if I understand correctly, on Aruba that encryption goes all the way back to the controller. If you implement WPA/WPA2, you don't need IPSEC. If you believe you need IPSEC, you really need WPA/WPA2. David Gillett -----Original Message----- From: Maps1 [mailto:maps1 () btinternet com] Sent: Tuesday, July 12, 2011 11:21 To: Mike Hale Cc: security-basics () securityfocus com Subject: Re: GRE Tunnels without IPSEC risks. Thanks, All. These are Aruba APs and controllers. Just so I'm clear - This is a VPN connecting the remote office to the main office, so I'm assuming it would still be encrypted inside this over the Internet? But then the GRE encapsulation would offer no additional protection so the traffic would be accessible to anyone who can sniff either side of the VPN (i.e. on the inside at either office) ? Does that sounds right, or is it worse than this? Thanks again! --- On Tue, 12/7/11, Mike Hale <eyeronic.design () gmail com> wrote:
From: Mike Hale <eyeronic.design () gmail com> Subject: Re: GRE Tunnels without IPSEC risks. To: maps1 () btinternet com Cc: security-basics () securityfocus com Date: Tuesday, 12 July, 2011, 17:51 GRE, by itself, doesn't encrypt anything. It *encapsulates* the payload, but doesn't encrypt it. If you want to make sure the data is encrypted, you'll need to run IPSec on that tunnel. On Tue, Jul 12, 2011 at 2:10 AM, Maps1 <maps1 () btinternet com> wrote:Hi List, Our network guys have been implementing wirelessaccess points in a remote office, which will then use a GRE VPN link back to our main office to connect to the wireless controller.In other remote offices where we have full WAN linksback to the main office, we have configured the APs to use IPSEC tunnels for this communication. Unfortunately, these don't seem to work through the VPN GRE tunnels used in the smaller offices.Please could someone help me to understand the risks(if any) involved in setting the AP communication to not use IPSEC tunnels, but to rely on the encryption on the GRE VPN tunnel instead?Thanks!---------------------------------------------------------------------- --Securing Apache Web Server with thawte DigitalCertificateIn this guide we examine the importance of Apache-SSLand who needs an SSL certificate. We look at how SSL works, how it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6b e442f727d1---------------------------------------------------------------------- ---- 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
------------------------------------------------------------------------ Securing Apache Web Server with thawte Digital Certificate In this guide we examine the importance of Apache-SSL and who needs an SSL certificate. We look at how SSL works, how it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates. http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727 d1 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Securing Apache Web Server with thawte Digital Certificate In this guide we examine the importance of Apache-SSL and who needs an SSL certificate. We look at how SSL works, how it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates. http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1 ------------------------------------------------------------------------
Current thread:
- GRE Tunnels without IPSEC risks. Maps1 (Jul 12)
- RE: GRE Tunnels without IPSEC risks. James Jelinek (Jul 12)
- Re: GRE Tunnels without IPSEC risks. Mike Hale (Jul 12)
- Re: GRE Tunnels without IPSEC risks. Maps1 (Jul 12)
- Re: GRE Tunnels without IPSEC risks. Mike Hale (Jul 12)
- RE: GRE Tunnels without IPSEC risks. David Gillett (Jul 13)
- Re: GRE Tunnels without IPSEC risks. Maps1 (Jul 12)