layer 3 port on switch

[carl_townshend]

If I configure my switch as a router and put a port in layer 3 mode, will all vlans on the switch be able to see this ?

[ankurbhasin]

Hi Carl,

If you configure "ip routing" and also you have layer 3 interfaces for all vlans then yes all the vlans will be able to see router as directly connected.

You can see your router as directly connected in "sh ip route"

HTH, if yes please rate the post.

Ankur

[carl_townshend]

Hi Ankur

what if all the other vlans are normal vlans with no ip, do I still need to enable routing so I can put the port in layer 3 mode ?

[ankurbhasin]

Hi Carl,

If all the other vlans are normal layer 2 vlans how will they see the router who will be in some other vlan or network.

You vlans will be in other subnets/networks so they need to be routed to reach the subnet/network which router belongs to.

So "ip routing" is requied and you need to have gateways for your clients in different vlans creating layer 3 interfaces for them.

HTH, if yes please rate all helpfull post.

Ankur