The Juniper SRX Services Gateway VPN must terminate all network connections associated with a communications session at the end of the session.
An XCCDF Rule
Description
Idle TCP sessions can be susceptible to unauthorized access and hijacking attacks. IKE Dead Peer Detection (DPD) is a protocol that verifies the availability of IPsec peer devices by sending encrypted IKE Phase 1 notification payloads to peers. Note: For dynamic (remote access) VPN, the TCP keep-alive for remote access is implemented in the Juniper SRX Firewall STIG.
- ID
- SV-214689r1056184_rule
- Version
- JUSX-VN-000022
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
For site-to-site VPN, configure an Internet Key Exchange (IKE) gateway that includes DPD parameters such as in the following example.
set security ike gateway IKE-PEER ike-policy IKE-POLICY
set security ike gateway IKE-PEER address <Peer IP Address>
set security ike gateway IKE-PEER dead-peer-detection always-send
set security ike gateway IKE-PEER dead-peer-detection interval 10