Problem in Static routing

[Rock Knot]

 hello everyone

I have setup a lab scenario to practice static routing, but I am only able to do ping on 122.27.27.35 from R1 and 122.27.27.37 from R4, and not able to ping the rest of the network like 143.32.32.122 from R4 and vice-versa.

can you please figure it out what am I doing wrong?

Thanks.

[paul driver]

Hello

r1-r2
r3-r4
Share the same subnet 143.32.32.0/24, if you change this design so you do not have duplicate addressing it should work

Example: R1-R2 - change to 143.33.33.0/24
R1
ip route 0.0.0.0 0.0.0.0 se1/0 143.33.33.121

R4
ip route 0.0.0.0 0.0.0.0 se1/2 143.32.32.141

R2
ip route 143.32.32.0 255.255.255.0 ser1/1 122.27.27.37

R3
ip route 143.33.33.0 255.255.255.0 ser1/1 122.27.27.35

[M02@rt37]

Hello @Rock Knot,

Problem because you have the same subnet between R1-R2 and R3-R4.

Then how R4 should route packet towards 143.32.32.122/24 since this subnet /24 is directly connected to its serial interface s1/2. And vice versa.

Modify your design, and use /30 subnet for Routers interconnection like this. You need only 2 IPs.

After that ensure on R2 and R3 you have statics routes towards the different subnets. R1 and R4, as extremity, should only have default route.

[Martin L]

just FYI, you can attach your PT file here but it must be in a zip format

Regards, ML
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