Multiple Vlans & Single Default Gateway

nam · 25 Feb 2016 at 23:25

Hi All
question for any cisco experts i am going to configure on Saturday a Cisco SF300-24 which is setup at present as a unmanaged switch. I need to configure 6 Vlans with 10 addresses each and they will all point to the same gateway address which is the Virgin Router.

Any advice if this is possible ?

Thank you

oldbag · 25 Feb 2016 at 23:30

Each vlan has its own gateway. The switch itself has the router as the gateway and probably routing enabled somewhere. Or something.

Caged · 25 Feb 2016 at 23:39

You'll need to put the switch into L3 mode.

nam · 26 Feb 2016 at 10:01

Caged said:
You'll need to put the switch into L3 mode.

Thanks, then it would be just a matter of making each of the ports in separate Vlans as access ports without any need for Trunk ports..

Or am i mistaken ?

oldbag · 26 Feb 2016 at 10:02

Afaik trunk ports are only needed if you want to extend the vlans to another physical switch.

Steve_bullockuk · 26 Feb 2016 at 15:04

oldbag said:
Afaik trunk ports are only needed if you want to extend the vlans to another physical switch.

This.

Richard_16v · 26 Feb 2016 at 20:11

You will need to create 1 GW per vlan, then on the switch create virtual interfaces for those vlans, then setup routing to send traffic to Virgin router (default route should do I believe).

Or, if the Virgin router can have multiple virtual interfaces you can set the vif on there for the vlan GW's and create a trunk port to carry all the vlans to the router.