Conclusion
When the router is deployed in the network, you must secure it properly to protect your network, investments, and hard work. The first step is to configure the proper users with access privileges. Depending on the number of users, the local router or an external server database may be used to hold this information, or an external server.
Once the users are in place, you need to deploy packet filters to protect the router. These filters may be very elaborate or quite simple depending on your security policies. Also, you may need to rate-limit some applications in your network using policers.
It also does not do much good to have a secure router if you can’t gather router health and other statistical information from it. Therefore, you also should deploy standard protocols such as SNMP, syslog, and NTP to achieve these management goals.
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