User`s manual

H.323 User's Manual 13. Security
Version 5.0 327 December 2006
Table 13-3: SPD Table Configuration Parameters
Parameter Name Description
First to Fourth Proposal
Encryption Type
[IPSecPolicyProposalEncrypt
ion_X]
Determines the encryption type used in the quick mode negotiation for up to
four proposals.
X stands for the proposal number (0 to 3).
The valid encryption values are:
Not Defined (default)
None [0] = No encryption
DES-CBC [1]
Triple DES-CBC [2]
AES [3]
First to Fourth Proposal
Authentication Type
[IPSecPolicyProposalAuthent
ication_X]
Determines the authentication protocol used in the quick mode negotiation for
up to four proposals.
X stands for the proposal number (0 to 3).
The valid authentication values are:
Not Defined (default)
HMAC-SHA-1-96 [2]
HMAC-MD5-96 [4]
If no IPSec methods are defined (Encryption / Authentication), the default settings (shown
in Table 13-4 below) are applied.
Table 13-4: Default IKE Second Phase Proposals
Encryption Authentication
Proposal 0 3DES SHA1
Proposal 1 3DES MD5
Proposal 2 DES SHA1
Proposal 3 DES MD5
¾ To configure the SPD table using the ini file:
SPD table is configured using ini file tables (described in Section 11.5 on page 303). Each
line in the table refers to a different IP destination.
The Format line (SPD_INDEX in the example below) specifies the order in which the actual
data lines are written. The order of the parameters is irrelevant. Parameters are not
mandatory unless stated otherwise. To support more than one Encryption / Authentication
proposals, for each proposal specify the relevant parameters in the Format line. Note that
the proposal list must be contiguous.
Figure 13-4: Example of an SPD Table
[ IPSEC_SPD_TABLE ]
Format SPD_INDEX = IPSecPolicyRemoteIPAddress, IpsecPolicySrcPort,
IPSecPolicyDStPort,IPSecPolicyProtocol, IPSecPolicyLifeInSec,
IPSecPolicyProposalEncryption_0, IPSecPolicyProposalAuthentication_0,
IPSecPolicyProposalEncryption_1, IPSecPolicyProposalAuthentication_1,
IPSecPolicyKeyExchangeMethodIndex, IPSecPolicyLocalIPAddressType;
IPSEC_SPD_TABLE 0 = 10.11.2.21, 0, 0, 17, 900, 1,2, 2,2 ,1, 0;
[ \IPSEC_SPD_TABLE ]