Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

SG200-26 Switch VLAN and Internet Access

Dear Community Members,

I start writing this post telling you that I'm not a qualified network admin, so I beg your pardon if I do not use appropriate terms in my question. Also my english in not so good since I'm Italian and my english in almost scholastic.

This is the "story" :

I bought two switches as described above and actually I have to create 2 VLANS as described below :

VLAN id 2     name "Service_A"   ports 1-4

VLAN id 3     name "Service_B"   ports 7-9

all other ports can stay in default VLAN1.

my network infrastructure have some other very simple swtiches connected and 1 soho router (static ip with dhcp active and ip pool address released from to 200.

the SG200-26 have static ip   and


I need VLAN for privacy matter so all computer connected to ports in VLAN2 cannot see nor enumerate PCs and resources on other VLANs,

but I also absolutely NEED that all computer in every ports (and every VLAN even default VLAN1) can access the internet.


I set port 25 and 26 as trunk and all other ports as access. I intented to use 26 as uplink to other switch and 25 to exit to the internet.

Created VLANs but only the VLAN in wich I set 25 as untagged can reach internet.

I asked a Cisco qualified tecnician and give him the switches to work with, but after 2 days of attemptes he said to me that it's not possible

to do what I need.


Please, I desperately need your help, I'm really loosing sleep over this problem!

Everyone's tags (4)

SG200-26 Switch VLAN and Internet Access

Hello Gianluca,

In order for this setup to work, you will have to have a router that supports multiple vlans. You did not mention the model of the router or if it does this so I wanted to first mention that.

I understand your setup to be as follows- Internet -> Router -> Switch 1 -> Switch 2

On each port that connects a network device you will want to set the following-

Trunk port

Vlan settings of 1U, 2T, 3T

This allows default vlan of 1 and also other vlans

On other ports (1-4 , 7-9) you want to set them as follows-

Access port

Vlan of 2U OR 3U

This puts that port into the vlan of your choice

This will be the configuration needed, but again, you must have a router that will support vlans or multiple subnets.

CreatePlease to create content