Giving DHCP with the MS350-24X

[sebastianfranco]

Hello everyone. In a situation with 20 AP's MR84 and only a one public IP, I like giving DHCP with the MS350-24X to all the APs and their respective clients? What would be the best configuration ?

[PhilipDAth]

Are they all going to be used in the same VLAN?  Is this for guest WiFi?  Are you also using an MX to connect to the Internet?  If so, I would run DHCP off the MX appliance.

[sebastianfranco]

Thanks for the reply Philip can be in the same vlan and also not be I'm not using an MX Thanks

[PhilipDAth]

If the device providing Internet access is in the same VLAN then just use that for DHCP.

[sebastianfranco]

Thank you Philip for your reply, i have this scenario: my isp provides me with one unique public IP and no DHCP they say me their device doesn't support DHCP so i can connect one only device directly to internet forcing me to install a router or in this case the Meraki MS350-24X. I have configured a DHCP server on vlan 10 on the MS350 and a interface with the public ip like  gateway, trying to use it like a bridge between both networks but  i get the MR84 connected on the MS350's DHCP Pool but they can´t reach the internet so i need help with this configuration, can you help me with this? tahnk you again. and best regards.

[Mr_IT_Guy]

Did you make sure to set up a route to the public? Should be something along the lines of:

Name: Default route

Subnet: 0.0.0.0/0

Next hop IP: Public IP address

[sebastianfranco]

This is a printscreen of the MS350-24X:

the first interface is to get the switch into the subnet of the isp modem with the ip 192.168.1.3

the second is the dhcp pool i created to conect the MR84 as dhcp clients of the switch

the third is the static route to the internal isp modem ip. (here i should change it for the external  ip instead the internal?).

this is the config i tried but with no success.

thank you in advance and excuse me for my poor english.

[PhilipDAth]

Does the ISP do NAT for you?  It sounds like the answer is no.  If not then you need a device that can do NAT, like an MX65.  Choose an MX from this page that is big enough to support the number of users you have.

https://meraki.cisco.com/products/appliances#models

[sebastianfranco]

Thank you for your reply Philips, and the answer is no, my isp is not doing NAT, its means that i need a Router in the mittle, don,t you?

[Mr_IT_Guy]

A MX device in the middle would definitely help you out!

[PhilipDAth · Accepted solution]

Yes, you need a router/security device in the middle. An MX series device would be a good choice.

You can choose a model from this page that is suitable based on the number of users that you have.

https://meraki.cisco.com/products/appliances#models

It may also be possible to pay for service provider an extra fee and have them put in a managed firewall/router for you.