Problem Network L3 C3650-24TS

[farguisito]

Hi,

I want to configure a little network where I have 1 Router Linksys and 2 Catalyst C3650-24TS. 

I have the next picture.

ip routing
!

!
!
!
!
interface GigabitEthernet0/0
vrf forwarding Mgmt-vrf
no ip address
negotiation auto
!
interface GigabitEthernet1/0/1
description "Telefonica router ISP fiber"
no switchport
ip address 10.0.0.1 255.255.0.0
no shutdown
exit

interface GigabitEthernet1/0/2
switchport mode access
duplex full
!
interface GigabitEthernet1/0/17
duplex full
switchport mode trunk

switchport trunk allowed vlan 1-3,10,20,30,40,50,1002-1005
no shutdown

!
interface Vlan1
description vlan1
ip address 192.168.1.1 255.255.0.0
ip nat inside
no shutdown

interface Vlan10
description vlan10
ip address 172.16.0.254 255.255.0.0
ip nat inside
no shutdown

interface Vlan20
description vlan20
ip address 172.17.0.254 255.255.0.0
ip nat inside
no shutdown

ip route 0.0.0.0 0.0.0.0 10.0.0.254 200

access-list 1 permit 192.168.0.0 0.0.255.255
access-list 1 permit 172.16.0.0 0.0.255.255
access-list 1 permit 172.17.0.0 0.0.255.255
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 1 permit 192.168.11.0 0.0.0.255
access-list 23 permit 192.168.1.0 0.0.0.255
access-list 23 permit 192.168.11.0 0.0.0.255
access-list 23 permit 192.168.0.0 0.0.255.255
access-list 23 permit 172.16.0.0 0.0.255.255
access-list 23 permit 172.17.0.0 0.0.255.255
access-list 101 permit ip 192.168.1.0 0.0.0.255 any
access-list 101 permit ip 192.168.8.0 0.0.0.255 any
access-list 101 permit ip 192.168.10.0 0.0.0.255 any
access-list 101 permit ip 192.168.11.0 0.0.0.255 any
access-list 101 permit ip 192.168.0.0 0.0.0.255 any
access-list 101 permit ip 172.16.0.0 0.0.255.255 any
access-list 101 permit ip 172.17.0.0 0.0.255.255 any

!
!

When I do one ping to the router, I haven´t any respond to me. I don´t know if The interVlan is not working or anything else.

Could anybody help me, please?

Regards.

[Mark Malone · Accepted solution]

Hi the nat should be done on the router not the switch , catalyst don't support nat

also you Linksys router needs a static route back to the switch  so it can return traffic back

remove this too the 200 at the end , its the only route so does not need to be weighted

ip route 0.0.0.0 0.0.0.0 10.0.0.254

[farguisito]

Hi Mark,

the problem was the static route in the router. It is working fine now.

Thanks!

Regards.

[Mark Malone]

great , glad you got it sorted

[Julio E. Moisa]

Hi

Is the subnet mask correct on the point to point with the router? You have a /16 -  255.255.0.0

As Mark mentioned, usually the switches dont support NAT (there are some exceptions like 6500 and some 5000 switches)