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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bradley, K.A. Cheung, S. Puketza, N. Mukherjee, B. Olsson, R.A. |
| Copyright Year | 1998 |
| Description | Author affiliation: Dept. of Comput. Sci., California Univ., Davis, CA, USA (Bradley, K.A.) |
| Abstract | An attractive target for a computer system attacker is the router. An attacker in control of a router can disrupt communication by dropping or misrouting packets passing through the router. We present a protocol called WATCHERS that detects and reacts to routers that drop or misroute packets. WATCHERS is based on the principle of conservation of flow in a network: all data bytes sent into a node, and not destined for that node, are expected to exit the node. WATCHERS tracks this flow, and detects routers that violate the conservation principle. We show that WATCHERS has several advantages over existing network monitoring techniques. We argue that WATCHERS' impact on router performance and WATCHERS' memory requirements are reasonable for many environments. We demonstrate that in ideal conditions WATCHERS makes no false-positive diagnoses. We also describe how WATCHERS can be tuned to perform nearly as well in realistic conditions. |
| Starting Page | 115 |
| Ending Page | 124 |
| File Size | 270617 |
| Page Count | 10 |
| File Format | |
| ISBN | 0818683864 |
| ISSN | 10816011 |
| DOI | 10.1109/SECPRI.1998.674828 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1998-05-06 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Protocols Kirk field collapse effect National security Condition monitoring Fault detection Computerized monitoring Computer science Communication system control Internet Gain control |
| Content Type | Text |
| Resource Type | Article |
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