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Turn an Old PC into a LAN Server with RouterOS, Part 2

Article Description

Want an enterprise router for your network at a fraction of the cost of a Cisco router? You can connect your offices together, remotely access files, run enterprise Wi-Fi encryption, and more. Eric Geier, author of Wi-Fi Hotspots: Setting Up Public Wireless Internet Access, concludes his two-part tutorial on getting a RouterOS machine up and running on a spare PC.
(c)Configure the Wireless Interface for Wi-Fi Access

Configure the Wireless Interface for Wi-Fi Access

If your computer is loaded with a supported wireless card, you can set up wireless access on the router.

Here's how to get started:

  1. Click the Wireless menu button to bring up the Wireless Interface window. If RouterOS detected supported wireless cards, they'll be listed here. If they're disabled, make sure you enable them.
  2. For the mode, select "AP Bridge".
  3. Configure the basic wireless settings, such as the band, frequency, SSID (network name), and the security profile.
  4. When you're done, close the wireless interface window.

Now you should configure wireless encryption to keep people off your network and to prevent eavesdropping:

  1. Select the Security Profiles tab.
  2. Modify the default profile by double-clicking it or click the Add button to create a new one.
  3. To use the simple method of WPA/WPA2 (PSK), select "Dynamic Keys" for the Mode. Then check the WPA PSK and/or WPA2 PSK Authentication Types. Select TKIP if using WPA and AES CCM if using WPA2. Then type your passphrase in the Pre-Shared Key boxes.

Next you need to create an IP address for the AP (wireless interface):

  1. Click IP > Addresses and then click the Add (plus sign) button.
  2. Type in an address within the same subnet, followed by a forward slash (/) and the netmask. For example, enter 192.168.1.2/24 if the router's IP is 192.168.1.1/24.
  3. Select the wireless adapter for the interface.
  4. Click OK to save the changes.

Now you probably want DHCP on the wireless side, too, so Wi-Fi users get their IP addresses automatically:

  1. Click IP > DHCP-Server and then click the Add (plus sign) button.
  2. Select the wireless adapter for the interface.
  3. For the Address Pool, select "dhcp_pool1".
  4. Click OK to save the changes.
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