R211x-HP Flexfabric 11900 Security Configuration Guide
156
Ste
p
Command
Remarks
4. Specify an authentication
method for the IKE proposal.
authentication-method pre-share
By default, an IKE proposal uses
the pre-shared key authentication
method.
5. Specify an authentication
algorithm for the IKE
proposal.
• In non-FIPS mode:
authentication-algorithm { md5 |
sha }
• In FIPS mode:
authentication-algorithm sha
By default, an IKE proposal uses
the HMAC-SHA1 authentication
algorithm.
6. Specify a DH group for key
negotiation in phase 1.
• In non-FIPS mode:
dh { group1 | group14 | group2 |
group24 | group5 }
• In FIPS mode:
dh group14
By default:
• In non-FIPS mode, DH group1
(the 768-bit DH group) is
used.
• In FIPS mode, DH group14
(the 2048-bit DH group) is
used.
7. Set the IKE SA lifetime for
the IKE proposal.
sa duration seconds
By default, the IKE SA lifetime is
86400 seconds.
Configuring an IKE keychain
Perform this task when you configure the IKE to use the pre-shared key for authentication.
Follow these guidelines when you configure an IKE keychain:
1. Two peers must be configured with the same pre-shared key to pass pre-shared key authentication.
2. You can specify the local address configured in IPsec policy view (using the local-address
command) for the IKE keychain to be applied. If no local address is configured, specify the IP
address of the interface that references the IPsec policy.
3. You can specify a priority number for the IKE keychain. To determine the priority of an IKE
keychain:
a. The device examines the existence of the match local address command. An IKE keychain with
the match local address command configured has a higher priority.
b. If a tie exists, the device compares the priority numbers. An IKE keychain with a smaller priority
number has a higher priority.
c. If a tie still exists, the device prefers an IKE keychain configured earlier.
To configure the IKE keychain:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Create an IKE keychain and
enter its view.
ike keychain keychain-name
[ vpn-instance vpn-name ]
By default, no IKE keychain
exists.