chap 2

• Advantages of static routing:

  • Static routes are not advertised over the network, resulting in better security
  • Static routes use less bandwidth than dynamic routing protocols
  • The path a static route uses to send data is known
• Disadvantages of static routing:

  • Initial configuration and maintenance is time-consuming
  • Configuration is error-prone, especially in large networks
  • Administrator intervention is required to maintain changing route information
  • Does not scale well with growing networks; maintenance becomes cumbersome
  • Requires complete knowledge of the whole network for proper implementation
• Static routing has three primary uses:

  • Providing ease of routing table maintenance in smaller networks that are not expected to grow significantly
  • Routing to and from stub networks
  • Using a single default route to represent a path to any network that does not have a more specific match with another route in the routing table
• Types of static routes:

  • Standard static route
  • Default static route
  • Summary static route
  • Floating static route
• Default static route:

  • A route that matches all packets and is used when a packet does not match any other, more specific route in the routing table
  • Commonly used when connecting an edge router to a service provider network or a stub router
  • Configured with 0.0.0.0/0 as the destination IPv4 address
• Verify a Default Static Route:

  • Use the 'show ip route static' command to display the contents of the static routes in the routing table
  • The asterisk (*) next to the route with code 'S' indicates a candidate default route, selected as the Gateway of Last Resort
• Configure a Default Static Route:

  • R1 can be configured with a default static route to efficiently forward packets not matching more specific route entries to 172.16.2.2
• IPv6 Static Routes:

  • Configured using the 'ipv6 route' global configuration command
  • Similar parameters to IPv4 static routes
  • Can be implemented as standard, default, summary, or floating routes
• Verify IPv6 Static Routes:

  • Useful commands to verify static routes include 'show ipv6 route' and 'show ipv6 route static'