IKE Gateway Advanced Options Tab
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IKE Gateway Advanced Options Tab
- Network > Network Profiles > IKE Gateways > Advanced Options
Configure advanced IKE gateway settings such as passive mode,
NAT Traversal, and IKEv1 settings such as dead peer detection.
IKE Gateway Advanced Options | Description |
---|---|
Enable Passive Mode | Click to have the firewall only respond
to IKE connections and never initiate them. |
Enable NAT Traversal | Click to have UDP encapsulation used on
IKE and UDP protocols, enabling them to pass through intermediate
NAT devices. Enable NAT Traversal if Network Address Translation
(NAT) is configured on a device between the IPSec VPN terminating points. |
IKEv1 Tab | |
Exchange Mode | Choose auto, aggressive,
or main. In auto mode (default),
the device can accept both main mode and aggressive mode
negotiation requests; however, whenever possible, it initiates negotiation
and allows exchanges in main mode. You must configure
the peer device with the same exchange mode to allow it to accept
negotiation requests initiated from the first device. |
IKE Crypto Profile | Select an existing profile, keep the default
profile, or create a new profile. The profiles selected for IKEv1
and IKEv2 can differ. For information on IKE Crypto profiles,
see Network
> Network Profiles > IKE Crypto. |
Enable Fragmentation | Click to allow the local gateway to receive
fragmented IKE packets. The maximum fragmented packet size is 576
bytes. |
Dead Peer Detection | Click to enable and enter an interval (2
- 100 seconds) and retry count (2 - 100). Dead peer detection identifies
inactive or unavailable IKE peers and can help restore resources
that are lost when a peer is unavailable. |
IKEv2 Tab | |
IKE Crypto Profile | Select an existing profile, keep the default
profile, or create a new profile. The profiles selected for IKEv1
and IKEv2 can differ. For information on IKE Crypto profiles,
see Network
> Network Profiles > IKE Crypto. |
Strict Cookie Validation | Click to enable Strict Cookie Validation on
the IKE gateway.
|
Liveness Check | The IKEv2 Liveness Check is
always on; all IKEv2 packets serve the purpose of a liveness check.
Click this box to have the system send empty informational packets
after the peer has been idle for a specified number of seconds.
Range: 2-100. Default: 5. If necessary, the side that is trying
to send IKEv2 packets attempts the liveness check up to 10 times
(all IKEv2 packets count toward the retransmission setting). If
it gets no response, the sender closes and deletes the IKE_SA and
CHILD_SA. The sender starts over by sending out another IKE_SA_INIT. |