Internet Connectivity for multiple vlans

[Abubakar Siddique]

Hello Fellas,

I have this scanario at one site where i have configure 11 vlans, in which i will have to provide internet access for three vlans. here is the network setup,

i have a one cisco 3850 which is acting as core switch and is connected to a dell sonicwall's X0 interface which is LAN, Firewall's IP address is 192.168.168.168/24 and i configured the switchport of 3850 as no switchport , assigned it ip address of the same subnet as of firewall i.e 192.168.168.169/24, 

intevlans routing is working perfectly fine at 3850, when i connect the ISP's cable direct to my laptop and assign it the public IP address provided by the ISP it works fine, i cam to know the Nating is enabled by default on Sonicwall, so i left it default, 

what do i have to configure on switch, do i need to configure the default router to 192.168.168.168 ? or to ISP's Public IP address the gateway that they provided me? kinda confuse here, so far i have been unable to make it work. Sonicwall is there so if anyone have faced such such scenario, Can help out here,  just need the guidence how do i make it work. considering the sonicwall in place 

[Jon Marshall · Accepted solution]

On the 3850 -

"ip route 0.0.0.0 0.0.0.0 192.168.168.168"

and then on the firewall you would need to add routes for your internal subnet with the next hop IP for all the routes being 192.168.168.169. 

Or you could run a dynamic routing protocol like OSPF but you may find it easier just using statics.

Jon 

[Abubakar Siddique]

so simple , thank you sir  i will try it out