VLAN and Default Gateway

Hey there guys!

I have a question.. Let's say I set up a switch with two VLANs... A VLAN 10 and VLAN 20.. I connect a host to VLAN 10, what default gateway should I enter on the host (computer) the routers ip or the VLAN 10 ip i set up using the command:

...# interface vlan 10
...# ip address xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy

Is it if I use the Vlan 10 ip as default gateway I will only have access to the VLAN 10 and not outside it?

What will happen if I assign VLANs 10 ip address as default gateway?

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Comments

NotHackingYou

VLANs operate at layer 2. The default gateway will come from your IP address scheme.

Christopher Dobkowski

Mhmmm, thank you!

I just realized that the interface vlan ip assigning is used for remote access ^^

Zartanasaurus

It depends. You can have an SVI be a default gateway if the switch is capable of routing.

Christopher Dobkowski

...# no switchport
and u can use it as default gateway r8?

I mean, the port gets routing properties.. correct?

DANMOH009

If your wanting to communicate between both Vlans, a router on a stick is probably what you'll need to look into, that's what is covered at CCNA level.

thsouthern

sample configure...

!
interface range GigabitEthernet1/0/2-24
auto qos voip cisco-phone
!
!
interface range GigabitEthernet1/0/2-24
switchport access vlan <<Data_VLAN_Number>>
switchport mode access
switchport nonegotiate
switchport voice vlan <<Voice_VLAN_Number>>
no logging event link-status
load-interval 30
no snmp trap link-status
!
! Shutdown unused access ports
interface range GigabitEthernet1/0/25-28
shutdown
!

Christopher Dobkowski

Mhmm, thanx DANMOH009

Woaaah, thsouthern, that confused me

mohamedshajid

Configuration is doesn't seems to get a practicals to you indeed unless if you find what is the gateway and what is vlan probably, Gateway is allowed to communicate outside and Vlan is assign for something called in switch to separate the stations in your workspace or any other system. If you need to access a vlan to another vlan you should use a router for the gateway and you should create a sub-interface in Router to complete the process of vlan with router or gateway.

oli356

mohamedshajid wrote: »

If you need to access a vlan to another vlan you should use a router for the gateway and you should create a sub-interface in Router to complete the process of vlan with router or gateway.

That's the router on a stick method which I doubt is used in the real world.

The way its normally does is by using L3 switches, the switch will have an IP address assigned to the VLAN (SVI), the hosts can have this IP as the DG and the switch will be able to route the packets between VLANs without a router with subinterfaces.