広告
広告
https://www.7key.jp/rfc/2080/rfc2080_3.html#source
https://www.7key.jp/rfc/2080/rfc2080_3.html#translation
This section describes administrative controls. These are not part of the protocol per se; however, experience with existing networks suggests that they are important. Because they are not a necessary part of the protocol, they are considered optional. However, it is strongly recommend that at least some of them be included in every implementation. These controls are intended primarily to allow RIPng to be connected to networks whose routing may be unstable or subject to errors. Here are some examples: - It is sometimes desirable to restrict the routers from which updates will be accepted, or to which updates will be sent. This is usually done for administrative, routing policy reasons. - A number of sites limit the set of networks that they allow in Response messages. Organization A may have a connection to organization B that they use for direct communication. For security or performance reasons A may not be willing to give other organizations access to that connection. In such a case, A should not include B's networks in updates that A sends to third parties.
この章では、管理制御について触れる。これらはプロトコルの一部ではないが、既存のネットワークでの経験からこれらは重要であると言える。これらはプロトコルの必要な部分ではないので任意と思われる。しかし、これらは強く推奨され、少なくともいくつかは実装すべきである。これらの制御は、主にルーティングが不安定であるかエラーに従うかもしれないネットワークに、RIPngが接続されることが可能であるよう意図される。いくつかの例を挙げる:
Here are some typical controls. Note, however, that the RIPng protocol does not require these or any other controls. - A neighbor list which allows the network administrator to be able to define a list of neighbors for each router. A router would accept response messages only from routers on its list of neighbors. A similar list for target routers should also be available to the administrator. By default, no restrictions are defined. - A filter for specific destinations would permit the network admin- istrator to be able to specify a list of destination prefixes to allow or disallow. The list would be associated with a particular interface in the incoming and/or outgoing directions. Only allowed networks would be mentioned in Response messages going out or processed in Response messages coming in. If a list of allowed prefixes is specified, all other prefixes are disallowed. If a list of disallowed prefixes is specified, all other prefixes are allowed. By default, no filters are applied.
いくつかの典型的な制御がある。しかし、RIPngプロトコルがこれらあるいは他のどんな制御も要求しないことに注意が必要である。
広告