DHCP

[fhensen1]

Good day,

i am installing my network at home and have a SG350 for my IPTV.

The line comes in to my Service Provider supplied router, then goed to the SG350.

On my service providers router i have DHCP enabled.

Should i disable it on my SG350, or how should i handle this?

I am new to managed switched, but i have some simple background in networking

Thanks you!

[Giuseppe Larosa]

Hello @fhensen1 ,

your understanding is correct you should disable the DHCP server on the SG350 switch, because the service provider router will be able to NAT only those addresses that are in its own DHCP pool / LAN subnet.

Hope to help

Giuseppe

[fhensen1]

Hi Giuseppe,

Thank you for your fast reply.

From what i understand is that i need to follow the folling steps:

https://www.cisco.com/c/en/us/support/docs/smb/switches/cisco-350-series-managed-switches/smb5406-configure-dynamic-host-configuration-protocol-dhcp-snooping.html

Exept the optional ones?

Thanks you

[Giuseppe Larosa]

Hello @fhensen1 ,

for a home setup you don't need to enable DHCP snooping or DHCP relay it is just enough to use the switch in default configuration and to connect the internet router  internal LAN interface to one of the ports.

Please note to work all the ports must be in the same VLAN so you can start with default settings using the default Vlan in all ports.

I would not enable DHCP snoping at the beginning because it could create  problems.

Later when you are more comfortable with the switch you can do it but the router port must be "trusted" as it is the server side port.

Hope to help

Giuseppe

[rafafilho11]

In order to configure the switch IP address management via DHCP go to:

IP Configuration => IPv4 Management and Interfaces

In order to configure the switch DHCP Server enable or disable go to:

IP Configuration => DHCP Server

[MohamedIbrahim22649]

Thank You so much it was useful..