Floating Static Route

9/18/2013

 
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

Static and Default IP Addressing

8/4/2013

 
Picture
TASKs:
  1. Confiigure IP addresses as per diagram
  2. Configure static ip address on R1 to reach network 2.2.2.0 and Default IP address on R3 to reach network 1.1.1.0
! R1 Configuration
hostname R1

interface FastEthernet0/0
 ip address 1.1.1.1 255.255.255.252
no shut

ip route 2.2.2.0 255.255.255.252 1.1.1.2


! R2 Configuration
hostname R2

interface FastEthernet0/0
 ip address 1.1.1.2 255.255.255.252
no shut

interface FastEthernet0/1
 ip address 2.2.2.1 255.255.255.252
no shut


! R3 Configuration
hostname R3

interface FastEthernet0/0
 ip address 2.2.2.2 255.255.255.252
no shut

ip route 0.0.0.0 0.0.0.0 2.2.2.1

Changing hostname to R1


Assigning ip address to an interface


Configuring static ip address on R1 to reach 2.2.2.0 network via next-hop 1.1.1.2





















Configuring Default ip address on R3 to reach 1.1.1.0 network via 2.2.2.1 Hop
Verification of routes

R1#show ip route

     1.0.0.0/30 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, FastEthernet0/0
     2.0.0.0/30 is subnetted, 1 subnets
S       2.2.2.0 [1/0] via 1.1.1.2


R2#show ip route

     1.0.0.0/30 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, FastEthernet0/0
     2.0.0.0/30 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, FastEthernet0/1


R3#show ip route

Gateway of last resort is 2.2.2.1 to network 0.0.0.0

     2.0.0.0/30 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, FastEthernet0/0
S*   0.0.0.0/0 [1/0] via 2.2.2.1

Verification via Ping

R1#ping 2.2.2.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/90/152 ms


R1#ping 2.2.2.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/96/232 ms