Intrusion detection systems have evolved independently for far too long now.

There is a conscious effort by the Internet Engineering Task Force (IETF) to bring

different intrusion detection systems together by trying to standardize the message

exchange format and to define a generic event flow model for Intrusion Detection

Systems.

 2.9 Summary

 This chapter looked at several intrusion detection systems and also some of the

latest technologies in intrusion detection. There is a move towards implementing IDS

infrastructure to scale up to meet the needs of large networks. Some of the works involve

using mobile agents for intrusion detection. A lot of work is also being done to

standardize of IDS event/signature formats and to improve IDS sensor capabilities.