Network > Network Profiles > IKE Crypto
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Network > Network Profiles > IKE Crypto
Use the
IKE Crypto Profiles
page
to specify protocols and algorithms for identification, authentication,
and encryption (IKEv1 or IKEv2, Phase 1).To change the order in which an algorithm or group is listed,
select the item and then click
Move Up
or Move
Down
. The order determines the first choice when settings
are negotiated with a remote peer. The setting at the top of the
list is attempted first, continuing down the list until an attempt is
successful.IKE Crypto Profile
Settings | Description |
---|---|
General Tab | |
Name | Enter a name for the profile. |
DH Group | Specify the priority for Diffie-Hellman
(DH) groups. Click Add and select groups: group1 , group2 , group5 , group14 ,group15 , group16 ,group19 , group20 ,
or group21 . For highest security, select
an item and then click Move Up or Move Down to
move the groups with higher numeric identifiers to the top of the
list. For example, move group14 above group2 . |
Authentication | Specify the priority for hash algorithms.
Click Add and select algorithms. For highest security,
select an item and then click Move Up or Move
Down to change the order (top to bottom) to the following:
If you select an AES-GCM algorithm for encryption, you must select the Authentication setting
non-auth . The hash is automatically
selected based on the DH Group selected. DH Group 19 and below
uses sha256 ; DH Group 20 uses
sha384 . |
Encryption | Select the appropriate Encapsulating Security
Payload (ESP) authentication options. Click Add and
select algorithms. For highest security, select an item and then
click Move Up or Move Down to
change the order (top to bottom) to the following:
The aes-256-gcm and aes-128-gcm algorithms have
authentication built into them; therefore, in those cases you
must select the Authentication setting to
be non-auth . |
Key Lifetime | Select unit of time and enter the length
of time that the negotiated IKE Phase 1 key will be effective (default
is 8 hours).
|
IKEv2 Authentication Multiple | Specify a value (range is 0-50; default is 0) that is multiplied by
the Key Lifetime to determine the authentication count. The
authentication count is the number of times that the gateway can
perform IKEv2 IKE SA re-key before the gateway must start over with
IKEv2 re-authentication. A value of 0 disables the re-authentication
feature. |
Advanced Options Tab | |
Post-Quantum IKEv2 Additional Key Exchange | Optionally, enable Post-Quantum IKEv2 Additional Key
Exchange rounds. You can add up to seven additional
rounds (Round 1-7) for RFC 9370. At a minimum, you need one PQC KEM
to add quantum resistance. Adding additional PQC KEMs further raises
quantum resistance, but increases the size of the IKEv2 packets. |
Round 1 - Round 7 tabs | Add PQCs to the individual Round
tabs. Order the PQCs in the Additional Key Exchange Round by
preference. The PQC listed at the top is preferred and is selected
if the VPN termination device on the other side of the tunnel
supports it. To negotiate the strongest PQC that both sides can
support, place the highest security level PQC at the top of the list
in each Additional Key Exchange Round.Do not negotiate the same PQC in more than one round as it doesn’t
provide additional quantum resistance. RFC 9370 allows additional
key exchange rounds to be skipped. Leave skipped rounds blank or set
to None . |