Solved: MG21E

DOT1X-5 · ‎10-24-2020

I am labbing a DMVPN setup using MG21 has my ISP.

However it is giving me a private dhcp ip address. Anyway to change this to get the public ip address instead?

GreenMan · ‎10-24-2020

No... This is from the MG21 Dashboard settings documentation: "The MG is only supported in routed mode. It acts as a layer 3 gateway between the subnets configured below. Client traffic to the Internet is translated (NATed) so that its source IP becomes the uplink of the cellular gateway."

https://documentation.meraki.com/MG/MG_Wireless_WAN_Dashboard_Settings

View solution in original post

GreenMan · ‎10-24-2020

No... This is from the MG21 Dashboard settings documentation: "The MG is only supported in routed mode. It acts as a layer 3 gateway between the subnets configured below. Client traffic to the Internet is translated (NATed) so that its source IP becomes the uplink of the cellular gateway."

https://documentation.meraki.com/MG/MG_Wireless_WAN_Dashboard_Settings

DOT1X-5 · ‎10-25-2020

or quick response.Thanks

DOT1X-5 · ‎10-25-2020

@agreen

The configuration shows a couple ip addresses.

General

Public IP

x.x.x.x

Cellular

IP

x.x.x.x

Gateway

x.x.x.x

What is difference between Public and Cellular?

GreenMan · ‎10-26-2020

I'm not 100% certain, but I think it likely that the cellular IP is a dynamic IP (probably an RFC1918 one) allocated by the mobile carrier to the mobile data link itself, which will then be (Carrier Grade) NATed to a general public IP, unless you order an appropriate data plan for your SIM.