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How to convert a Switch into Routed

You can turn any router into a switch by disabling the DHCP server on the router. Now as far as being able to get an IP for a machine, there must be a gateway device on the network whether that is a computer, router or FW appliance that DHCP IP(s) or static IP(s) can be used by the switch. You want to the machines on the router (now a switch) not accessible, then you change the subnet on the router (now a switch) to be a different subnet mask than the gateway device.


The principles for making a router a switch and using it are the same no matter if it's a wire or wireless router or brand name being used.


If you want to use two routers with each using their own DHCP and subnets, then you connect routers together taking the WAN port of the second router and plug it into the Uplink port of the gateway router or FW appliance if the device has an Uplink port.

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I'm using TP-LINK TD-W8101G ADSL Modem Router to connect internet, I'm trying to connect it with Linksys WRT120N Router Wirelessly. I want to use WRT120N as access point to extend TP-LINK Wireless signal. Here are what i've done. TP-Link IP : 192.168.1.1 DHCP : Enabled Linksys IP: 192.168.1.2 DHCP : Disabled NAT : Disabled Dynamic Routing : Enabled Static Routing Route Name : TP-LINK Destination IP : 192.168.1.1 Subnet : 255.255.255.0 Default Gateway : 192.168.1.1 Interface : LAN & Wireless


Unfortunately, you can't use two routers together in that manner. You must have a device in between them such as a switch or bridge or you'll have to disable the DHCP server settings in the second router. The second router then pretty much becomes a switch you may then use all the ports on the second router with the exception of the WAN port it must remain unoccupied. However, if you need wireless connectivity in another location far away from your main router then your only solution would be to indeed purchase an actual access point/bridge device

Sep 06, 2011 | Linksys WRT120N Router

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I have a unstable linksys WAG200G what can I do


Converting A Router To A Switch The five steps are:
  1. [Optional] Put a piece of electric tape over the WAN port so it doesn't get used.
  2. Disable the DHCP server.
  3. Change the downstream router's LAN IP.
  4. [Optional] Turn off the wireless radio on the downstream router.
  5. Connect an Ethernet cable from a LAN port on the upstream router to a LAN port on the downstream router.
Step 1: Putting a piece of electric tape over the WAN port isn't necessary. But it is a good way to prevent future problems caused by someone plugging a device into that port.
Step 2: Log into the downstream router, look for the DHCP configuration section, and disable the DHCP server. For example, on a Dlink DI-614+, DHCP server configuration is a menu in the Home configuration section.

Step 3: Change the downstream router's LAN IP to an unused IP in the same subnet as the upstream router. Log into the upstream router and find the DHCP server controls. Figure 3 shows a typical set of DHCP server controls. You can see that 192.168.3.200 - 250 is the range of addresses that will be issued by this router's DHCP server.
You can use any IP address outside (above or below) this range, except for 0 and 255, which are reserved. You also can't use the IP address used by the upstream router. This is usually 1, which in this case is 192.168.3.1. But if you log into your upstream router's admin screens using an IP address with anything other than 1 as the last octet, i.e. XXX.XXX.XXX.1, then just don't use that address.
Thus, a safe LAN IP address for the downstream router that isn't used by the upstream router is an address from 192.168.3.2 to 192.168.3.199. So I assigned my downstream router a LAN IP of 192.168.3.3 (Figure 4).
Step 4: [Wireless routers only] Disable the downstream router's wireless function. It doesn't hurt to unscrew the antennas from the downstream router as well if they are detachable. This gets them out of the way since you aren't using them anymore. Figure 5 shows the wireless disabled for a D-Link DGL-4300.
Step 5: Connect the downstream router. Run an Ethernet cable from a LAN port on the upstream router to a LAN port on the downstream router. The LAN ports are the ports that often grouped together and not labeled as WAN or Internet.

If you need more help post back!
Thumbs and testimonial are welcome!

Feb 23, 2011 | Linksys WAG200G Router

1 Answer

what command used to convert a switch port into a routed port in 1648T switch..


Hello
You can turn any router into a switch by disabling the DHCP server on the router. Now as far as being able to get an IP for a machine, there must be a gateway device on the network whether that is a computer, router or FW appliance that DHCP IP(s) or static IP(s) can be used by the switch. You want to the machines on the router (now a switch) not accessible, then you change the subnet on the router (now a switch) to be a different subnet mask than the gateway device.


The principles for making a router a switch and using it are the same no matter if it's a wire or wireless router or brand name being used.

If you want to use two routers with each using their own DHCP and subnets, then you connect routers together taking the WAN port of the second router and plug it into the Uplink port of the gateway router or FW appliance if the device has an Uplink port.


Hope it will help, if so do rate the solution

Dec 11, 2010 | NorStar Nortel PASSPORT 1648T ROUTING...

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I am trying to install a Netgear router after my switch. I end up having no internet on some of the computers connected to the hub and none on the router. If I configure the router as a dhcp client instead of a server, everything gets internet except the wireless. How can I configure this setup to work.


You'll want to configure your router as a dhcp server. Connect the switch to your router's lan port. Connect the remaining devices to a port on the switch. Your wireless access point should have it's dhcp server disabled. You can only have one dhcp server per network. The wireless can get it's address from the router's dhcp and the wireless client devices will get their ip address from the router, as well. If your wireless access point is a router with a wan/broadband port and some switch ports you will want to make sure that you are connecting to your Asus switch via one of the switch ports.
Be sure that your client devices are configured to get their ip address via dhcp and you should be surfing the interweb in no time flat.

Oct 21, 2010 | ASUS GX1008B 10100Mbps Desktop Unmanaged...

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How do I configure DHCP server on my wireless router?


Step 1 Open a web browser and type the IP address of the wireless router in the address bar (default is 192.168.0.1). Press Enter. Step 2 The default username is admin (all lower case) and the password is blank (nothing). Click OK. Step 3 Click on the Home tab and then click on DHCP to the left. Note: If you are connecting to a DHCP server, the DHCP server on the wireless router should be set to Disabled. Step 4 By default, DHCP Server is set to Enabled. To disable it, click the Disabled radio button. To enable it, click the Enabled radio button. Step 5 Enter the Starting IP Address and Ending IP Address. To change the lease time, select a value from the drop-down list next to Lease Time. Note: The value for Starting IP Address must be less than the value for Ending IP Address. Step 6 Click on Apply then click Continue to save the settings.

Feb 16, 2006 | D-Link Express EtherNetwork DI-604 Router

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