ipsec xauth

IP Security encryption-IPSec uses network communication encryption technology. Although the header and tail information of a data packet cannot be encrypted, such as the source/destination IP address, port number, and CRC Check value, data packets can be encrypted. Because the encryption process occurs on the IP layer, you can perform security encryption on the network protocol without changing protocols such as POP/WWW. At the same time, it can also

Introduction to Web Security--the process of loading and unpacking ESP packets in IPSec transfer modeOne, IPsec(a) introduction Internet Security Protocol ( English:Internet Protocol Security, abbreviated to IPSEC), is to protect the IP Protocol's Network transport Protocol family (a collection of interrelated protocols) by encrypting and authenticating the IP Pr

The windows2003 system has a weak firewall capability, and the key is that it cannot be configured with commands, which can cause a lot of work on a bulk deployment, so access control using IPSecUnder Windows2003, you can operate with the command netsh ipsecSyntax for commands: http://technet.microsoft.com/zh-cn/library/cc739550 (v=ws.10). aspx 1. Delete all security policiesnetsh ipsec static del all 2. Establish strategy testnetsh

Introduction to IPSec: IPSec provides a series of protocol standards, the IPSec protocol is not a separate protocol, it gives a set of architecture applied to IP network data security, in the peer selection includes network authentication protocol authentication Header (AH), Encapsulating Secure Payload Protocol Encapsulating Security Payload (ESP), Key Manageme

Tags: mode environment Port Mob cookie inter between features creatIKE (Internet Key Exchange)-Internet Key exchangeIn order to introduce the FLEXVPN based on IKEV2, this paper introduces IKEV1 and IKEv2 differences.Before starting the introduction, take a look at the application and workflow of IKEV1 in IPSec VPN.In IPSec VPN, IKE is used to negotiate IPSec SAs.

I have been busy a few days ago for my livelihood. Unfortunately, I got sick for a few days, so I didn't keep the documents in time. I would like to apologize to everyone, especially those who are eager to wait for me to write a book. Finally, I started to talk about the IPSec VPN technology. I have explained the principles of ssl vpn and mpls vpn. I still want to introduce the IPSec VPN principles in a

Author: kendivDate: 2006.12.20 *************************************Requirements*************************************A. Linux kernel, either 2.0, 2.2, 2.4 or 2.6 based.B. If building from source, libgmp development libraries. *************************************Klips netkey (aka "26sec" or "native ")*************************************For linux kernels 2.6.0 and higher, openswan gives you the choice of using the built in IPsec stack (netkey)Or the

Data communication and network note-IPSec1. IP layer security: IPSecIP layer security (IPsec) is a set of protocols designed by the Internet Engineering Task Group (IETF) to provide security for IP layer groups. IPsec helpGenerate identified and Secure IP layer groups, such:1. Two MethodsIPSec runs in two different modes: Transmission Mode and tunnel mode, as shown in:Transmission ModeIn the transmission mo

In actual network usage, we often run GRE + IPSEC to achieve remote access and reply from the center to the branch. This is easy to configure and provides high availability, we know that both link backup and device backup are not state backup. When a point is broken, it will take dozens of seconds or even minutes to converge, to switch to another line and rebuild the ipsec session. We can use GRE +

1.L2TP the second-tier tunneling protocol is a way to access certificates. You need to install a certificate Server in the VPN server intranet, and then have the VPN server trust the certification authority, and then publish the Certificate Server and download the certificate. VPN clients need access need to download the installation certificate before they can connect 2.IPSEC Internet Security protocol is a smart card access mode.Linode used for som

In the previous blog, the small series has used the GRE protocol to achieve the VPN technology, then in this blog, the small part of the use of IPSec protocol to achieve VPN, although the theoretical knowledge is somewhat abstract, but in helping us understand the technology is still very necessary, then now began to theory IPSec (IP Security) is a group of open protocols, the specific communication betwe

[Routera-acl-adv-3101]quit# Configure static routes to Host B . [Routera]ip route-static 10.1.2.0 255.255.255.0 serial 2/1(out of Port)# Create A security proposal called Tran1. [Routera]ipsec Proposal Tran1# The message package is in the form of tunnel mode. [Routera-ipsec-proposal-tran1]encapsulation-mode Tunnel# The security protocol uses the ESP protocol. [Routera-i