topic Yes ping from SWITCH 3750 in Switching

Cisco 3750 switch routing problem

Marco Bisignano — Fri, 08 Mar 2019 13:41:13 GMT

Hi all, I have a Cisco switch 3750 with this configuration: on Fast ethernet 0 I have configured this network:

interface FastEthernet0
ip address 10.41.105.198 255.255.255.192

this interface is connected to a remote site (remote site address is 10.41.105.1)

then I have configured:

interface GigabitEthernet1/0/1
switchport access vlan 101

and

interface Vlan101
ip address 45.100.11.1 255.255.255.0

now I have a PC connected to GigabitEthernet1/0/1 and this is the configuration:

IP: 45.100.11.10

Subnet: 255.255.255.0

GW: 45.100.11.1

Now the situation is:

ping from SWITCH 3750 to remote site 10.41.105.1 is OK

ping from PC to 45.100.11.1 (GW) is OK

ping from PC to 10.41.105.198 (FastEthernet0) is OK

ping from PC to remote site 10.41.105.1 is NOT OK (Reply timeout)

why I'm not able to ping remote site on 10.41.105.1 ? I have already tried to set:

ip routing

...

ip route 10.41.105.1 255.255.255.255 FastEthernet0

ip route 45.100.11.0 255.255.255.0 vlan 101

but is still not working and the answer is the same (Reply timeout); please help me.

Thank you.

Hi!

Carlos Villagran — Tue, 10 May 2016 18:09:12 GMT

Hi!

Can you ping to 10.41.105.1 from the switch?

Regards!]

Yes ping from SWITCH 3750

Marco Bisignano — Tue, 10 May 2016 18:13:26 GMT

Yes ping from SWITCH 3750 console to remote site 10.41.105.1 is OK

Hi,

Reza Sharifi — Tue, 10 May 2016 18:19:09 GMT

Hi,

ip route 10.41.105.1 255.255.255.255 FastEthernet0

try this:

ip route 10.41.105.192 255.255.255.192 FastEthernet0

and test again.

HTH

Hi!

Carlos Villagran — Tue, 10 May 2016 19:01:27 GMT

Hi!

Can you ping 10.41.105.198 from PC?

Regards!

Yes, as I reported on my post

Marco Bisignano — Tue, 10 May 2016 19:09:08 GMT

Yes, as I reported on my post those are the results:

ping from SWITCH 3750 to remote site 10.41.105.1 is OK

ping from PC to 45.100.11.1 (GW) is OK

ping from PC to 10.41.105.198 (FastEthernet0) is OK

ping from PC to remote site 10.41.105.1 is NOT OK (Reply timeout)

No sorry, absolutely not

Marco Bisignano — Tue, 10 May 2016 19:09:41 GMT

No sorry, absolutely not working

Hi!

Carlos Villagran — Tue, 10 May 2016 19:40:51 GMT

Hi!

Then you should not be able to ping from remote site to 45.100.11.1.

This could be caused by a routing problem in the remote site with no route to 45.100.11.1/24.

Hope it helps, best regards!