Security Basics mailing list archives
Re: Types of VPNs
From: "Barry Irwin" <bvi () itouchlabs com>
Date: Mon, 5 May 2003 07:54:06 +0200
Morning, you should be ble to fins answers to these with a quick hunt round google. anywhay here are some answers. 1 Types of VPNs, A VPN simply encapsulates pakets within other packets for transport over public network. Common technologies used are IPSEC, PPTP, L2TP, GRE, IPIP 2 Difference in both types of tunnels (AH/ESP), These only apply to IPSEC VPNs. AH stands for authenticated header. using this, a packet is encapsulated within another packet that contains a cryptographic checksum. Packet payload is NOT encrypted, but it can be detected whether the packet was changed in transit. ESP - Encrypted Security Payload. The packet is encrypted, and then encapsulated, providing for both privacy and authentication of the packet integrity 3 difference in implentation and their behavior in a production environment for both types of VPNs Welll this depends what you are wanting to achieve, adn what technology you use. 4 sngle tunnel v split tunnel and can this be implemented in both type of tunnels? With regards to IPSEC, as far as I amn aware the ability to do this would depend on the software used to implement the tunnel. The protocol itself does not impose any restrictions on this. Regards, Barry -- Barry Irwin bvi () itouchlabs com Tel: +27214875178 Systems Administrator: Networks And Security iTouch Technology iTouch TAS http://www.itouchlabs.com Mobile: +27824457210 ----- Original Message ----- From: "Imran K" <ikhan () eudoramail com> To: <security-basics () securityfocus com> Sent: Thursday, May 01, 2003 6:59 PM Subject: Types of VPNs
Greetings, I am looking for conceptual pointers about VPNs. Things like, (1)Types of VPNs, (2) Difference in both types of tunnels (AH/ESP), (3)
difference in implentation and their behavior in a production environment for both types of VPNs, (4) Single tunnel v split tunnel and can this be implemented in both type of tunnels?
If some out there could give me some pointers that will be very helpful Cheers, I Need a new email address that people can remember Check out the new EudoraMail at http://www.eudoramail.com --------------------------------------------------------------------------
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Current thread:
- Types of VPNs Imran K (May 02)
- Re: Types of VPNs Barry Irwin (May 05)
- <Possible follow-ups>
- RE: Types of VPNs Wilcox, Stephen (May 02)