Cisco Switch Cannot Ping. Please Help!

ratneshnagori

Hi,
I using Boson Simulator for a switch simulation. I connected three switched with each other (all catalyst 2950).
Now I gave ip addresses to VLAN 1 of all switches in same network with same mask. Also, I did "no shut".
Now, I am able to ping Switch 1 to Switch 2 and Switch 3 to Switch 2 (consider that Switch 2 is in middle of the topology).
The problem I am facing is that, I am not able to ping Switch 1 from Switch 3. I did lot of work but problem is still the same.

Please help....

Thanks in advance

Regards
Ratnesh

tech-airman

ratneshnagori wrote: »

Hi,
I using Boson Simulator for a switch simulation. I connected three switched with each other (all catalyst 2950).
Now I gave ip addresses to VLAN 1 of all switches in same network with same mask. Also, I did "no shut".
Now, I am able to ping Switch 1 to Switch 2 and Switch 3 to Switch 2 (consider that Switch 2 is in middle of the topology).
The problem I am facing is that, I am not able to ping Switch 1 from Switch 3. I did lot of work but problem is still the same.

Please help....

Thanks in advance

Regards
Ratnesh

Ratneshnagori,

What "same network with same mask" did you assign to VLAN 1?

phoeneous

Do a "sh run" on all three switches and post the results here. Sounds like you may have misconfigured one of the ip addresses.

ratneshnagori

Hi tech-airman,

Switch1 - int vlan 1
ip add - 192.168.1.1 255.255.255.0

Switch2 - int vlan 1
ip add - 192.168.1.2 255.255.255.0

Switch2 - int vlan 1
ip add - 192.168.1.3 255.255.255.0

These were the ip add I configured on switches.
Also one more thing, I was able to ping between sw1 and sw3 when I didnt configured ip on Switch 2. As I did that on switch 2, ping was dropping.

Ratnesh

georgemc

ratneshnagori wrote: »

Hi tech-airman,

Switch1 - int vlan 1
ip add - 192.168.1.1 255.255.255.0

Switch2 - int vlan 1
ip add - 192.168.1.2 255.255.255.0

Switch2 - int vlan 1
ip add - 192.168.1.3 255.255.255.0

These were the ip add I configured on switches.
Also one more thing, I was able to ping between sw1 and sw3 when I didnt configured ip on Switch 2. As I did that on switch 2, ping was dropping.

Ratnesh

Hi Ratnesh,
I took 5 minutes and configured your setup on a lab in front of me and all works fine. I started with 3 "new" 2950s (real) and cabled them with crossover cables from Switch1 FA0/1 to Switch2 FA0/1 and then from Switch2 FA0/24 to Switch3 FA0/24. I then set the hostname on each switch to Switch1, Switch2, and Switch3 respectively. I then set the IP Address and Mask in each switch as you detailed above and then did a "no shutdown" on VLAN1 in each switch.
I am able to ping from Switch1 to Switch2 and Switch3, from Switch2 to Switch 1 and Switch3, and from Switch 3 to Switch1 and Switch2.

Possibly you mistyped one of the IP addresses or you have a bug in your version of the Boson Simulator?


George

ratneshnagori

georgemc wrote: »

Hi Ratnesh,
I took 5 minutes and configured your setup on a lab in front of me and all works fine. I started with 3 "new" 2950s (real) and cabled them with crossover cables from Switch1 FA0/1 to Switch2 FA0/1 and then from Switch2 FA0/24 to Switch3 FA0/24. I then set the hostname on each switch to Switch1, Switch2, and Switch3 respectively. I then set the IP Address and Mask in each switch as you detailed above and then did a "no shutdown" on VLAN1 in each switch.
I am able to ping from Switch1 to Switch2 and Switch3, from Switch2 to Switch 1 and Switch3, and from Switch 3 to Switch1 and Switch2.

Possibly you mistyped one of the IP addresses or you have a bug in your version of the Boson Simulator?


George

Hi George,

Thanks a lot for doing work for me. Yeah it may be that Boson has some kind of problem.
I will also try on switches as I joined the BSCI classes today...

Thanks again for ur help.

Ratnesh

tech-airman

ratneshnagori,

ratneshnagori wrote: »

Hi tech-airman,

Switch1 - int vlan 1
ip add - 192.168.1.1 255.255.255.0

On Switch 1, which port(s) are access port(s) to VLAN1?

ratneshnagori wrote: »

Switch2 - int vlan 1
ip add - 192.168.1.2 255.255.255.0

On Switch2, which port(s) are access port(s) to VLAN1?

ratneshnagori wrote: »

Switch2 - int vlan 1
ip add - 192.168.1.3 255.255.255.0

On Switch3, which port(s) are access port(s) to VLAN1?

ratneshnagori wrote: »

These were the ip add I configured on switches.
Also one more thing, I was able to ping between sw1 and sw3 when I didnt configured ip on Switch 2. As I did that on switch 2, ping was dropping.

Ratnesh

When you mention "...ping between sw1 and sw3..." is the computer that you're pinging FROM connected to sw1 through: a) the console port b) a switch port c) other?

ratneshnagori

Hi tech-airman,

Well, it was nothing but a bug in Boson. I tried with othere version of Boson and it worked....

Thanks for your help

Ratnesh