Floating Static Route

TASKS:

1. Configure IP addresses on R1 and R2 as per topology
2. Configure Loopback interface on R2 10.1.1.1/32
3. Configure 1.1.1.0 as primary static route
4. Configure 1.1.2.0 as floating static route
5. Verify results by shutting down primary route interface of R1, R2 and both.
   

! Configuration of R1
hostname R1

interface FastEthernet0/0
ip address 1.1.2.1 255.255.255.0
no shut

interface FastEthernet0/1
ip address 1.1.1.1 255.255.255.0
no shut

ip route 10.1.1.1 255.255.255.255 1.1.1.100
ip route 10.1.1.1 255.255.255.255 1.1.2.50 15


! Configuration of R2
hostname R2

interface Loopback0
ip address 10.1.1.1 255.255.255.255

interface FastEthernet0/0
ip address 1.1.2.50 255.255.255.0
no shut

interface FastEthernet0/1
ip address 1.1.1.100 255.255.255.0
no shut

Explanation










Primary Static route with default Administrative distance
Floating Static route with administrative distance of 15

Verification

R1#show ip route
     1.0.0.0/24 is subnetted, 2 subnets
C       1.1.1.0 is directly connected, FastEthernet0/1
C       1.1.2.0 is directly connected, FastEthernet0/0
     10.0.0.0/32 is subnetted, 1 subnets
S       10.1.1.1 [1/0] via 1.1.1.100

Shut down R1 primary route interface and check routing table now

R1#show ip interface brief
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            1.1.2.1         YES manual up                    up
FastEthernet0/1            1.1.1.1         YES manual administratively down down

R1#sh ip route

     1.0.0.0/24 is subnetted, 1 subnets
C       1.1.2.0 is directly connected, FastEthernet0/0
     10.0.0.0/32 is subnetted, 1 subnets
S       10.1.1.1 [15/0] via 1.1.2.50