Tagged Questions
5
votes
3answers
77 views
Does IPSec use IKE or ISAKMP?
Does the IPSec protocol suite use IKE or ISAKMP?
RFC 2828 states ISAKMP is the protocol used in IPSec to handle SAs, key management and system authentication. Other sources say IKE is the protocol ...
2
votes
2answers
183 views
Filtering In Iran
Since many of you already know the Iranian government aggressively uses internet censorship to block sites such as facebook, flicker, bbc, etc.
The Iranian people use various methods to bypass ...
2
votes
1answer
69 views
IPSec AH + ESP used together
When ESP and AH are used together (ESP transport, AH transport) on the same packet does ESP encrypt the AH's hash, or is the hash left in the clear?
If the hash isn't encrypted, there are obviously ...
5
votes
3answers
150 views
How can an outsider tap into communications between two physical sites?
When referring to 'Sites' - I am not talking about a website, but of a physical place where a company resides. Today, to secure communications between two sites - Let's say between an office in ...
0
votes
4answers
258 views
IPSec VPNs and symmetric keys
When dealing with IPSec based VPNs, I understand that there is a slight "problem" with symmetric key exchange. Obviously, you can't send the keys over the VPN, since they are used to guarantee the ...
4
votes
2answers
735 views
L2TP/IPsec shared secret: Can it be public?
My university provides a VPN service to gain access to internal services to all members. They are apparently using an L2TP/IPsec solution by Cisco.
I'm able to connect just fine, but I'm a bit ...
9
votes
1answer
767 views
If an attacker is intercepting all of my traffic, will he be able to listen on my VPN session?
If I am a remote user, connecting to my firm from home, using IPSec VPN tunnel or through SSL, and an attacker is intercepting all of my traffic, will he be able to watch my VPN session on the clear ...
5
votes
3answers
387 views
What is the difference between encrypted data and data sent through an encrypted tunnel
I am looking at different VPN protocols.
[1] L2TP does not provide encryption so require IPSec to encrypt the data
[2] IPSec tunnel provide encryption to the tunnel
What is the difference in terms ...
5
votes
0answers
804 views
SSL vs IPsec what's the difference [duplicate]
Possible Duplicate:
What is the difference in security between a VPN- and a SSL-connection?
Which is more secure? And offer better access control?
8
votes
1answer
802 views
What's are the advantages of L2TP/IPSEC over plain IPSEC?
As the title says really, my firewall (Sonicwall) can do either IPSEC or L2TP/IPSEC for VPN connections. One advantage of L2TP/IPSEC I can see is that the client computer get allocated it's own IP ...
4
votes
1answer
1k views
Is L2TP as secure as IPSEC for VPNs?
Is it as secure to use L2TP for VPN access, rather than IPSEC? Am I introducing any risks by using L2TP?
11
votes
7answers
9k views
What is the difference in security between a VPN- and a SSL-connection?
I would like to design a client-server application where the server is placed on Internet. I assume that I could set up the client-server connection using VPN (is it using IPSec?) or using a SSL ...
13
votes
4answers
689 views
IPsec (Internet Protocol Security) facts
Internet Protocol Security (IPsec) is a successor of the ISO standard Network Layer Security Protocol (NLSP). What are the advantages, disadvantages, other interesting facts regarding the protocol?
