Inter Vlan Routing Help

Joutei

Hey Guys,

I was doing a CCNA lab with intervlan Routing. The network topology is

x3 switches (1 vtp server , 2 clients)
x1 Router
x3 End device Computers
x1 Tftp server

Basically i setup everything correctly , the computers on the seperate vlans can ping each other.

But here's my question, should the switch be able to ping the computer's?
I was not able to ping a computer from my switch.

If it helps , I can upload the packet tracer file for it.

Cheers

headshot

the switch needs an IP address and a default gateway.

Joutei

i have set a default gateway.
the switch needs an ip address ? i have vlan 99 with the ip address 172.17.99.11

fsanyee

if you confugured your switch correctly with an ip address and a default gw, ping should work.

r_durant

Joutei wrote: »

i have set a default gateway.
the switch needs an ip address ? i have vlan 99 with the ip address 172.17.99.11

I'm assuming that vlan99 interface is up/up and this subnet can route to computers that you're trying to ping?

drkat

when you login to the switch to ping you will need to make sure the default gateway is setup. Now I know you said it is, so can you ping R1 from the switch? can you ping any vlan interfaces on the router for the PC subnets?

Joutei

Hmm, Im going to upload the Packet tracer file.

Will give you guys a better idea .

passwords:

user verification pass : cisco

en pass: class

download link:

lab 6.4.2.pkt

Thanks !

Joutei

Il give you guys the packet tracer file.
Will be easier

passwords:

user verification pass : cisco
en password: class

download link:

lab 6.4.2.pkt

Thank you

luberguilarte

Is the native vlan 99 on the same subnet as the default gateway ? check that out.

Joutei

Hi

I cannot ping R1 , vlan 99 ip address 192.168.99.11
default gateway set is : 192.168.99.1

luberguilarte

Can you provide us with the subnet mask please?
Thanks

Joutei

255.255.255.0

luberguilarte

Ok , the mask is fine , sometime packet tracert frizz on some configurations on me , try to save the configurations and then reload the router and the switch.

Joutei

one of my friends said:

In the absence of a multi-layer switch the router is used for inter-vlan routing, ie router on a stick. The whole point of your lab. If your distribution layer switch is layer 3 capable you don't need a separate
layer 3 device. But in order to ping from a layer 2 only switch you have to assign ip addresses to the respective vlans.

georgemc

The native VLAN on the router is set to VLAN 1 while the native VLAN for FA0/5 onSW1 is set to VLAN 99. Change the native VLAN on SW1 FA0/5 to VLAN 1 and your ping will work just fine.