Here we will also mention necessary information regarding Yamaha network products. There are various types of exchange modes such as “main mode”, “base mode”, and “quick mode”, etc., due to variations in key exchange methods. Additionally, as for “DH Group” in some cases this is simply written as “Group”. There are variations in parameter descriptions, for instance, as for authentication methods, there are descriptions such as “method of authentication” or “Authentication Method”. For the unknown parameters, sometimes it’s possible to make a connection using default value settings stated later. Additionally, when there are parameters that cannot be configured, their values should be fixed, so you need to know these values. One tip is to stay aware of the methods of configuring these parameters and their possible configuration values. In this document, bearing in mind the above points, we will mention points to note in attempting interconnection. In particular, it is understood that there are discrepancies in implementations where RFC specifics are unclear. For this, the only thing to do is wait for an implementation change, however in some cases the implementation cannot be blamed so categorically. When there is some implementation issue, no matter how much ingenuity you use in configuration, in some cases you will be unable to make your connection. Additionally, even if these are output, sometimes their meanings cannot be understood.Ĭonsequently, since there is no other recourse, normally we change settings in various ways and try all combinations of assumed parameters. However, it is not necessarily the case that all of the required logs will be output. To grasp interconnection trouble areas, analyzing logs is thought to be the most effective means.

Consequently, the process of adjusting settings is thought of as like threading a needle. IKE performs many checks to exchange keys safely, but with just one single failed check a key exchange will be halted. In other words, the user must grasp the meanings of these parameters and correctly configure them.Īdditionally, IKE has the characteristic that one single mistake in settings is fatal. Configuration Difficultiesįor IKE, there are parameters such as IDs, algorithms or PFS, but one characteristic of IKE parameters is little room for negotiation. There are several causes of interconnection difficulties, but primarily these are difficulties with configuration and log analysis, and implementation problems. Although many products that support IKE are compliant with RFC2401 to RFC2409, when it comes to actual interconnection, things are not so simple.

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