What is the correct syntax of a floating static route?
- ip route 18.104.22.168 255.255.255.248 serial 0/0/0
- ip route 22.214.171.124 255.255.255.248 10.0.0.1 120
- ip route 0.0.0.0 0.0.0.0 serial 0/0/0
- ip route 172.16.0.0 255.248.0.0 10.0.0.1
Explanation: Floating static routes are used as backup routes, often to routes learned from dynamic routing protocols. To be a floating static route, the configured route must have a higher administrative distance than the primary route. For example, if the primary route is learned through OSPF, then a floating static route that serves as a backup to the OSPF route must have an administrative distance greater than 110. The administrative distance on a floating static route is put at the end of the static route: ip route 126.96.36.199 255.255.255.248 10.0.0.1 120.