Static Route

[sulaiman.ejaz]

I attached a snip shot of my topology. I am trying to understand static routes but having some problems. kindly guide me.

Topology 

I have three routers in my topology and I want to access a loopback interface which is located at router C from router A.

kindly check the snip shop attached with.

[InayathUlla Sharieff · Accepted solution]

Sulaiman, There are lot of ways to achieve this. Please find my answeR:-

Actions:

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R1---1.1.1.1/24----R2----2.2.2.2---R3---Lo-4.4.4.4

What I have done is i have good connectvity directly between the routes and my devices are reachable.

1- Now your question is to reach 4.4.4.4 from R1 through R2 is :-

a- Have static route from R1 to R2 ( I did : ip route 4.4.4.4 255.255.255.255  1.1.1.2) --1.1.1.2 is R2 connecting link.

b- Have a static route from R2 to R3.( ip route 4.4.4.4 255.255.255.255 2.2.2.2)--2.2.2.2 is the R3 interface ip address which is connected to R2.

(Till here you will have reachable to 4.4.4.4 from R2 but not from R1 bcz you doesnt have return route.)

c- Configure the return route on R3. ( ip route 1.1.1.1 255.255.255.255 2.2.2.1)--2.2.2.1 is the R2 interface ip address connected with R3.

result:

R1#ping 4.4.4.4

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.4.4.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms

R1#
R1#trace 4.4.4.4
Type escape sequence to abort.
Tracing the route to 4.4.4.4

1 1.1.1.2 0 msec 0 msec 0 msec
2 2.2.2.2 1 msec 0 msec 0 msec

HTH

Regards

Inayath

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[sulaiman.ejaz]

Thank you so much dear. I was missing something which I got after reading your very clear and helpful response. 

one more thing I need to know. Routing is about forwarding the packets? I mean as you said packets would receive on router R3 but I can't  back to R1. Is there any way see this? I mean I want to just see that packets are being received on R3 but not forwarded back to R1.