Securing Network Devices

Securing Network Devices

1. Gigabit Ethernet

   • Cisco has different routers depending the requirements.

2. Security

   • Areas of Router Security
     • Physical Security
       • Secure infrastructure equipment in a locked room.
       • Install an uninterruptible power supply (UPS) and prevent DoS attacks.
     • Operating System
       • Maximum amount of memory possible
       • Use the last version of OS
       • Keep a secure copy of the router OS image.
       • Sniffing a Telnet Password
         • Configure SSH
           • Using CCP
         • Follow TCP Stream
     • Router Hardening
       • Authorized personal only.
       • Disable unused ports, interfaces and services.
   • Security Policy
     • Banner Messages
   • Administrative Access
     • Restrict device accessibility
     • Log and account for all access
     • Authenticate access
       • Use Strong Passwords.
         • Change frequently
         • Min. 10 Characters.
       • Cisco Commands should be utilized
         • security passwords min-length
         • service password-encryption
         • exec-timeout
           • Default time is 10 min.
     • Authorize actions

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