How To Create A Negotiating Ipsec Policy
Any of the IPSec policy tools can also be used to create an IPSec negotiation policy
. To do so, follow these steps:
1. Create the IPSec policy on a test computer:
a. Create a rule.
b. Indicate whether a tunnel endpoint is required.
Important If a tunnel mode policy will be created, two rules are necessary one to specify each side of the tunnel. If a transport mode policy will be created, no tunnel endpoint is necessary.
c. Select the network connections that will enforce the rule. Choices are
Remote, LAN, or
free IT certification test questions all.
d. Create a filter that indicates the source address of the packet that will trigger the rule, the destination address of the computer or computers that will block or permit traffic, and the protocol type and port.
e. Create a negotiate filter action.
f. Select an authentication method. Methods are Kerberos, certificate, or shared
key.
g. If encryption should be used, select the acceptable encryption types.
h. Select integrity types.
i. Select key change periods.
2. Assign the policy on the test computer.
3. Test the policy.
4. If the policy works, deploy the policy in the production network as required.
The considerations for the Diffie-Hellman group include the following:
The Diffie-Hellman group indicates the size of the key used to secure the Quick
Mode negotiation when the master key is being
CompTIA Certification calculated. The larger the group number, the larger the key. Groups include the following:
Q Low (1) Q Medium (2) a High (3)
The larger the size of the key, the better the security. However, the larger the size of the key, the longer it will take to calculate the key. These keys are not the keys used to encrypt the data
220-701, however, and while data encryption keys are likely to change during data transmission, the key used by IKE is not.
Restrict the policy to Diffie-Hellman group 3 only if all computers that must successfully negotiate the policy are Windows Server 2003 computers. If other computers or devices will need to communicate using the policy, use group 1 or 2.
by: endeavor03
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