Static Route Basics
This type of route is manually configured by an administrator and does not change unless edited or removed.
What is a static route?
A default IPv4 route is often called this, because it is used when no more specific route exists.
What is the gateway of last resort?
This basic connectivity tool sends ICMP echo requests to test if a destination can be reached.
What is ping?
If show ip route doesn’t display your static route, this is the first configuration element of the static route you should verify for mistakes.
What is the destination network and subnet mask?
This is the IPv6 default route prefix and prefix length.
What is ::/0?
This two-part piece of information (like 192.168.10.0 255.255.255.0) defines the destination network of a static route.
What is the network address and subnet mask?
This is the destination network and mask used when configuring an IPv4 default route.
What is 0.0.0.0 0.0.0.0?
This command shows the IPv4 routing table on a Cisco router.
What is show ip route?
You configure a static route with a next-hop IP address, but the route is not in the routing table. The most likely cause is that this condition about the next hop is not met.
What is the next-hop IP must be reachable (in a directly connected or routable subnet)?
This global unicast address (type) is commonly used as a next-hop IPv6 address in a static route configuration.
What is a global unicast IPv6 address?
In the command ip route 10.10.10.0 255.255.255.0 192.168.1.1, this is what 192.168.1.1 represents.
What is the next-hop IP address?
In this command: ip route 0.0.0.0 0.0.0.0 203.0.113.1, 203.0.113.1 usually points to this device.
What is the upstream/next-hop router (or ISP router)?
In the routing table, static routes are identified with this single-letter code.
What is S?
Two routers have static routes to each other’s LANs, but hosts still cannot reach each other. This term describes the missing configuration on the return path.
What is return routing (or a missing return route)?
The command syntax for an IPv6 static default route starts with these three keywords.
What is ipv6 route ::/0?
In the command ip route 10.10.10.0 255.255.255.0 GigabitEthernet0/0, GigabitEthernet0/0 is this type of parameter.
What is the exit interface?
On a router, this command shows if a default route is installed and what the gateway of last resort is.
What is show ip route?
This command helps identify where along a path packets are being dropped by showing each hop.
What is traceroute?
A static route is in the routing table, but pings still fail. The interface used as the exit interface on the static route is in this state.
What is administratively down or line protocol down?
A floating static route is designed to act as this type of path, only used when a primary route fails.
What is a backup route?
If a destination network is directly connected, adding a static route pointing to that network is unnecessary because of this reason.
What is it’s already in the routing table as a connected route?
A default route will only be used if this condition about more specific routes in the routing table is true.
What is no more specific matching route exists?
This command can be used to verify whether a static route is configured correctly on an interface level by inspecting line protocol and status.
What is show ip interface brief?
You see multiple routes to the same network in the routing table; the static route is not being used. This is because the competing route has a lower value of this parameter.
What is a lower administrative distance?
To make a floating static route, you adjust this parameter to be higher than that of the primary dynamic route.
What is the administrative distance?