Help with inter-vlan

[nonfatyogurt19]

Hey guys. I'm in need of some guidance. Currently I'm expanding my companys network to a differnt floor. 2 of the offices will be for our people and the rest is being leased to another small business. My boss would like to have the small business on their own vlan. Here's the setup:

First floor: 

 Cisco 891 router connected to switch 

Vlan 1: 10.90.11.0 /24 Data

Vlan 2: 10.90.12.0 /24 Voice 

What I would like to have set up on the second floor is

Vlan 1: 10.90.11.0 /24 Data

Vlan 2 : 10.90.12.0 /24 Voice

Vlan 3: 10.90.13.0 /24 Small Business Data

As of now I have a new switch on the second floor already trunked to the first floor. When I tried creating a new sub interface for vlan 3 I kept getting an ambiguous command error. I've heard of using svi to route traffic but Im not familiar with the setup as I am relatively new to networking. Any help would be appreciated 

[Julio E. Moisa]

Hi

If you have to create a sub interface for a new vlan 3, try executing these commands, example:

interface fa0/0.3
encapsulation dot1q 3
ip add 10.90.13.1 255.255.255.0

Dont forget to included the vlan 3 on the switch and under the trunk interface connected to the router only if you are restricting the vlans.

Please rate the comment if it is useful

:-)

[Julio E. Moisa]

If you are doing intervlan routing, the config should be similar to:

ROUTER

interface f0/0
no shutdown

interface fa0/0.1
description DATA
encapsulation dot1q 1
ip add 10.90.11.1 255.255.255.0

interface fa0/0.2
description VOICE
encapsulation dot1q 2
ip add 10.90.12.1 255.255.255.0

interface fa0/0.3
description NEW-ONE-VLAN
encapsulation dot1q 3
ip add 10.90.13.1 255.255.255.0

SWITCH 1

vlan 1
vlan 2
vlan 

interface fa1/1
description to P2P-TO-ROUTER
switchport 
switchport trunk encapsulation dot1q
switchport mode access
no shutdown

interface fa1/2
description to P2P-TO-SWITCH2
switchport 
switchport trunk encapsulation dot1q
switchport mode access
no shutdown

SWITCH 2

vlan 1
vlan 2
vlan 

interface fa1/1
description to P2P-TO-SWITCH1
switchport 
switchport trunk encapsulation dot1q
switchport mode access
no shutdown

*If you are using SVI, the interface vlans should be created on the switches but this switch should has routing capability. 

Hope it is useful

:-)