13.1. Why Secure Your Devices?
I can't tell you how many people ask, "Which services and processes on a router should I turn off?" Table 13.1 contains a listing of the most vulnerable and most commonly attacked services and processes, and you should seriously consider disabling these. The listing is not complete by any means, but it is a great place to start your security audit.
| Item | Comments |
|---|---|
| Open router interfaces | Limit unauthorized access to the router and the network by disabling unused, open router interfaces. |
| Bootp server | This service is enabled by default. This service is rarely required and should be disabled. |
| Cisco Discovery Protocol (CDP) | This service is enabled by default. If not required, this service ... |
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