An IKE session begins with the initiator sending a proposal or proposals to the responder. The proposals define what encryption and authentication protocols are acceptable, how long keys should remain active, and whether perfect forward secrecy should be enforced, for example. Multiple proposals can be sent in one offering. The first exchange between nodes establishes the basic security policy; the initiator proposes the encryption and authentication algorithms it is willing to use. The responder chooses the appropriate proposal (we'll assume a proposal is chosen) and sends it to the initiator. The next exchange passes Diffie-Hellman public keys and other data. All further negotiation is encrypted within the IKE SA. The third exchange authenticates the ISAKMP session. Once the IKE SA is established, IPSec negotiation (Quick Mode) begins.
Aggressive Mode squeezes the IKE SA negotiation into three packets, with all data required for the SA passed by the initiator. The responder sends the proposal, key material and ID, and authenticates the session in the next packet. The initiator replies by authenticating the session. Negotiation is quicker, and the initiator and responder ID pass in the clear.
IPSec negotiation, or Quick Mode, is similar to an Aggressive Mode IKE negotiation, except negotiation must be protected within an IKE SA. Quick Mode negotiates the SA for the data encryption and manages the key exchange for that IPSec SA.
1/. Does Cisco ISE comply with ISO/PCI DSS/etc? If yes, can you share which point?
2/. Does Cisco ISE have Reports for HIPPA/TRM/ISO/PCI DSS/PDR compliance format?
3/. How does Cisco ISE provide protection for Data at Rest and Data in Motion? Please Help...
Hello. I'm trying to implement a tunnel between two endpoints in a IPv6 network, using IPSEC.The tunnel establishes correctly: I used wireshark to see the IKE packets during the negotiation.The problem is, pings are not going through the tunnel correctly....
HiAmy ideas whats causing this please |i have recently added a new Cert on the other end of the tunnel RTR. ?? .May 21 16:48:11.108: %CRYPTO-4-RECVD_PKT_INV_SPI: decaps: rec'd IPSEC packet has invalid spi for destaddr=X.X.X.X, prot=50, spi=0x4E128779...
Radius server configuration for 802.1X
Server radius test1
Address ipv4 10.1.1.1
Server radius test2
Address ipv4 10.1.1.2
aaa group server radius TEST-gr
server name test1
server name test2