LAN Problem

[muraripadhan]

Hi Dears

there are two departments one is IT and another is HR

From IT to HR connected through single mode ofc and using SFP module.

In HR depatrment there are two switch

SW1 ip  is 192.168.1.10/24

SW2 ip is 192.168.1.11/24

(Here SW1 is connected with IT core and SW2 is connected with SW1 using UTP patch cord)

In IT

Core switch ip is 192.168.1.2/24

and Router ID is 192.168.1.1/24

Problem No-1

When I trying to SW1  ping 192.168.1.10 at that time it shows "request timeout" & "host Unreachable"

but at the same time when i trying to sw2 192.168.1.11 its pinging

Please tell me the problem and give me the solution ?

Problem No-2

When i pinging to my core switch at that time its pinging but when i trying to pinging to my router at that time is also showing "request timeout" & "host unreachable" but its working fine.

Please tell me the problem and give me the solution ?

[Diana Karolina Rojas]

In problem 1: From which device or devices are you trying to do the ping to your SWs?

In problem 2: From which device or devices are you trying to do the ping to your Core and Router? 

How are your devices connected to each others? Can you provide the topology?

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Regards,

[muraripadhan]

I am trying to ping from my computer.

My pc ip is 192.168.1.100/24 (this is my Network admin PC)

My topology is

Router--->Core---->SW1----->SW2 (all are cisco switch)

Router Model is 3700

Core is 4006

SW1 is SG500-28 port

SW2 is SF300

Router and Core are connected using Cat6 cable

Core and SW1 are connected using Single mode SFP module

SW1 and SW2 are connected using cat6 cable.

Router is connected to other division (My location is Hyderabad and other location is Bangalore)

There is no fault to connect to HYDERABAD to BANGALORE

[Dol Meun]

Hi,

Are you using cross cable to connect between sw1 and sw2?

[muraripadhan]

Yes sir

[Diana Karolina Rojas]

Are Your vlan up in layer 2 and layer 3? in all the switches including the core?

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Regards,

[muraripadhan]

yes sir

[paul driver]

Hello
Sounds like you have a flat network and your router is performing the L3 routing?

If so then all switches need to have ip routing disabled and default-gateway pointing to 192.168.1.1 (RTR)

Switches:
no ip routing
ip default-gateway 192.168.1.1


res
Paul

[Julio E. Moisa]

Hi

On recent models you can use straight cables to connect the switches, could you please provide the model of your switches: core, sw1 and 2, and router. 

I think the topology is:

Router - Core Switch - SW1 - SW2

Thank you 

[muraripadhan]

Router model is 3000 series

Core is 4006

SW1 is sg500-28

SW2 is SF300

Sir topology is

Router- core-SW1- SW2

[Julio E. Moisa]

Thank you

The gateway for the vlans should be configured on the Core 4006 for example:

vlan 10-11,100

ip routing

interface vlan 10
ip add 192.168.10.1 255.255.255.0
no shutdown

interface vlan 11
ip add 192.168.11.1 255.255.255.0
no shutdown

interface vlan 100
description MANAGEMENT-DEVICES
ip add 192.168.100.1 255.255.255.0
no shutdown

- Now the trunk

interface g1/24
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
no shutdown

- SW1 and SW2
Should have the required vlans and using trunks interface between then and the SW1 with Core. 

- Router and Core 
Should use a routing protocol to create an adjacency and enable the communication. 

Now, may I know why the SW2 is not connected to the Core directly instead of cascade it?

:-)