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IPSEC_TUNNEL_POLICY1 structure (ipsectypes.h)

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The IPSEC_TUNNEL_POLICY1 structure stores the quick mode negotiation policy for tunnel mode IPsec. IPSEC_TUNNEL_POLICY2 is available.

Syntax

typedef struct IPSEC_TUNNEL_POLICY1_ {
  UINT32                  flags;
  UINT32                  numIpsecProposals;
  IPSEC_PROPOSAL0         *ipsecProposals;
  IPSEC_TUNNEL_ENDPOINTS1 tunnelEndpoints;
  IPSEC_SA_IDLE_TIMEOUT0  saIdleTimeout;
  IKEEXT_EM_POLICY1       *emPolicy;
} IPSEC_TUNNEL_POLICY1;

Members

flags

A combination of the following values.

IPsec policy flag Meaning
IPSEC_POLICY_FLAG_ND_SECURE
 Do negotiation discovery in secure ring.
IPSEC_POLICY_FLAG_ND_BOUNDARY
 Do negotiation discovery in the untrusted perimeter zone.
IPSEC_POLICY_FLAG_CLEAR_DF_ON_TUNNEL
 Clear the "DontFragment" bit on the outer IP header of an IPsec tunneled packet.
IPSEC_POLICY_FLAG_DONT_NEGOTIATE_SECOND_LIFETIME
 If set, Internet Key Exchange (IKE) will not send the ISAKMP attribute for 'seconds' lifetime during quick mode negotiation.
IPSEC_POLICY_FLAG_DONT_NEGOTIATE_BYTE_LIFETIME
 If set, IKE will not send the ISAKMP attribute for 'byte' lifetime during quick mode negotiation.
IPSEC_POLICY_FLAG_ENABLE_V6_IN_V4_TUNNELING
 Negotiate IPv6 inside IPv4 IPsec tunneling. Applicable only for tunnel mode policy, and supported only by IKEv2.
IPSEC_POLICY_FLAG_ENABLE_SERVER_ADDR_ASSIGNMENT
 Enable calls to RAS VPN server for address assignment. Applicable only for tunnel mode policy, and supported only by IKEv2.
IPSEC_POLICY_FLAG_TUNNEL_ALLOW_OUTBOUND_CLEAR_CONNECTION
 Allow outbound connections to bypass the tunnel policy. Applicable only for tunnel mode policy on a tunnel gateway. Do not set on a tunnel client.
IPSEC_POLICY_FLAG_TUNNEL_BYPASS_ALREADY_SECURE_CONNECTION
 Allow ESP or UDP 500/4500 traffic to bypass the tunnel. Applicable only for tunnel mode policy.
IPSEC_POLICY_FLAG_TUNNEL_BYPASS_ICMPV6
 Allow ICMPv6 traffic to bypass the tunnel. Applicable only for tunnel mode policy.

numIpsecProposals

Number of quick mode proposals in the policy.

ipsecProposals

Array of quick mode proposals.

See IPSEC_PROPOSAL0 for more information.

tunnelEndpoints

Tunnel endpoints of the IPsec security association (SA) generated from this policy.

See IPSEC_TUNNEL_ENDPOINTS1 for more information.

saIdleTimeout

An IPSEC_SA_IDLE_TIMEOUT0 structure that specifies the SA idle timeout in IPsec policy.

emPolicy

The AuthIP extended mode authentication policy.

See IKEEXT_EM_POLICY1 for more information.

Requirements

Requirement Value
Minimum supported client Windows 7 [desktop apps only]
Minimum supported server Windows Server 2008 R2 [desktop apps only]
Header ipsectypes.h

See also

IKEEXT_EM_POLICY1

IPSEC_PROPOSAL0

IPSEC_SA_IDLE_TIMEOUT0

IPSEC_TUNNEL_ENDPOINTS1

Windows Filtering Platform API Structures