UNSOLVED

Samuel.Campos

updated

15 years ago

0

2918

July 14th, 2011 08:00

Problems with a VLAN

Hi. My name is Samuel and I'm making a few changes in the network infrastructure of our company but to be honest, I don't have to many idea about the VLANS, is the first time that I try to create something like that. 

I'm creating a second IP range for the people how is not part of the company, so we are going to have:

  • 172.16.X.X: for internal user and resources 
  • 172.17.X.X: for external users.

The DHCP is already config and is working correctly, so if you choose any of these ranges manually is working corretly the config and you have Internet and access to the different services in each network. 

I'm now try to assign the IP range to each port in the swich (PowerConnect 3548) using VLANS. All sounds fine but the result all the time is a wired ip in the computer connected to that port. The steps that I'm using are this:

  • Switch/VLAN/VLAN membership. I'm creating the new VLAN 2 in this point
  • System/IP Adressing/iPv4 adressing. I'm adding in this point the second range (172.17.X.X) and adding to the VLAN2 
  • Now I change the port in the Switch/VLAN/Vlan membership to VLAN2
  • In port settings I select the port as General and VID as 2 

But when I connect any device to that port the IP range that the computer receive is 169.254.23.247. I don't know what more to do, what more things try and what more options try. The result is the same all the time. 

Any kind of help? Something that I'm missing?

Thanks a lot, Sam.

  • bdearlove

    65 Posts

    347

    0

    Posted July 15th, 2011 09:00

    hmm, I am having a little trouble understanding, but let me give it a try:

    VLAN1 - 172.16.X.X

    VLAN2 - 172.17.X.X

    You will only assign an IP Address for the switch on VLAN1. The 3548 does not do Layer3 Routing, the IP address is only for management. You will need a Layer3 Device in order to do routing between the two networks. As you are using VLAN2 for external users I would suggest a firewall so you can restrict ports and addresses as you need. The Firewall/Router would have 3 connections, 1WAN for Internet, 1 for VLAN1 and 1 for VLAN2.

  • 347

    0

    Posted July 19th, 2011 06:00

    bdearlove  thanks so much for the reply, you really solve one of my huge questions. The part that I don't understand is the solution to the problem.

    I need to connect my firewall (he had 8 different ports) to the switch 3 times? 1 for WAN, other for VLAN1 and other for VLAN2. Is that correct? I don't understand that point

    Then in the switcher how can config each port to each VLAN or WAN?

    Sorry for the questions, I'm really lost and I don't have more things to try :(

    Thank you so much.