What is a null static route?

A static route to Null0 is a normal static route, except that it points to the Null0 interface, which is a virtual IOS interface. Refer to the ip route section of Chapter: IP Routing Protocol-Independent Commands A through R for more information about the ip route command.

What is enable static routes?

Static routes provide more routing information to your router. Typically, you do not need to add static routes unless you have multiple routers or multiple IP subnets on your network.

How do I enable static routing?

Configuring Static Routes

  1. Navigate to the Configuration > Network > IP > IP Routes page.
  2. Click Add to add a static route to a destination network or host. Enter the destination IP address and network mask (255.255.
  3. Click Done to add the entry. Note that the route has not yet been added to the routing table.

Why static routes are used?

Static routing is often used as a complement to dynamic routing to provide a failsafe backup in the event that a dynamic route is unavailable. Static routing is often used to help transfer routing information from one routing protocol to another (routing redistribution).

Why do we use static routes?

What type of static route is created when the next hop?

What type of static route is created when the next-hop IP address and exit interface are specified? A fully specified static route has the next-hop IP address and exit interface specified. A recursive static route has only the next-hop IP address specified.

What is the default static route?

A default static route is simply a static route with 0.0. 0.0/0 as the destination IP address. Routes that identify a specific destination take precedence over the default route.

Can a zebra.conf read a static route?

If the user has not fully upgraded to using the staticd.conf and still has a non-integrated config with zebra.conf holding the static routes, staticd will read in the zebrad.conf as a backup. STATIC supports all the common FRR daemon start options which are documented elsewhere. Static routing is a very fundamental feature of routing technology.

Which is the last route in zebra kernel?

If there is no route to and, and interface eth0 is reachable, then the last route is installed into the kernel. If zebra has been compiled with multipath support, and both and are reachable, zebra will install a multipath route via both nexthops, if the platform supports this.

What is the gateway name in zebra V4?

GATEWAY is gateway for the prefix it currently must match the v4 or v6 route type specified at the start of the command. GATEWAY can also be treated as an interface name. If the interface name is null0 then zebra installs a blackhole route.

How does zebra calculate the best route across protocols?

Routing protocols communicate their best routes to zebra, and zebra computes the best route across protocols for each prefix. This latter information makes up the Forwarding Information Base (FIB). Zebra feeds the FIB to the kernel, which allows the IP stack in the kernel to forward packets according to the routes computed by FRR.