SF350-24 Managed Switch - Port isolation

[v1taNova]

I have  managed switch and I would like to accomplish the following setup:

I want to connect one Residential Gateway(Internet) to the switch(port 1) to feed all the other ports on the switch to the Internet. The problem with this is now any device connected to this switch will see the each other . This will cause problems. So what needs to be done is isolate all the ports on the switch so that each port can ONLY see the port that the RG(internet) is connected to and NOT the other ports.

[balaji.bandi]

look at the example :

https://www.cisco.com/c/en/us/support/docs/smb/switches/cisco-small-business-300-series-managed-switches/smb5659-configure-private-vlan-membership-settings-on-a-switch-throu.html

[v1taNova]

not sure how to send this code. any idea

[balaji.bandi]

you looking interface range to configure :

setp2 has syntanc

interface range gi0/0/1-4 ( this means 1-4 have same configuration you going to enter). rather entering in each intercace.

is that what you looking ?

[v1taNova]

I still get an error (bad parameter value) when I enter this command:

interface range gi0/0/1-4

[balaji.bandi]

this is an example only

interface range gi0/0/1-4 ( you need to replace g0/0/.1-4 with your interface number)

show interface status gives you interface information.