Tag: RADIUS

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Ruckus : Using Multiple RADIUS Servers

I have recently been configuring Network Access Control with 802.1x, and I had been having issues with using multiple RADIUS servers on Ruckus ICX Switches. The main issue being:

RADIUS Authenticate over SSH to switch using Microsoft NPS RADIUS Server
RADIUS Authenticate using 802.1x or MAC-Auth using DOT1x RADIUS Server

In Ruckus ICX switches there isn’t any concept of AAA groups like in Cisco, where you can designate specific RADIUS traffic to go to various different RADIUS Servers.

I have found 2 work arounds, I did however also call support and spend 1 hour troubleshooting with them and they didn’t have an answer for me.

Some Basic Setup Information

Microsoft NPS RADIUS Server : 1.1.1.1
DOT1x RADIUS Server : 1.1.1.2

Here are my AAA Authentication Commands:

SSH@tpw-sw1# sh run | inc authentication
aaa authentication web-server default radius local
aaa authentication enable default radius local
aaa authentication dot1x default radius
aaa authentication login default radius local

Here are my 2 work arounds:

WORKAROUND 1

SSH@tpw-sw1(config)# radius-server host 1.1.1.1 auth-port 1812 acct-port 1813 default key RADIUS1SECRET
SSH@tpw-sw1(config)# radius-server host 1.1.1.2 auth-port 1812 acct-port 1813 default key RADIUS2SECRET dot1x mac-auth

If you use the 1.1.1.2 RADIUS server first in the list you cannot authenticate to the switch at all, even over super-user-password. So the only way I have it working is to have the DOT1x Radius Server listed 2nd but calling out DOT1x and MAC-AUTH.

WORKAROUND 2

The other method I found is to apply a command at the interface level:

SSH@tpw-sw1# conf t
SSH@tpw-sw1(config)# int ethernet 1/1/1
SSH@tandy-lab-sw1(config-if-e1000-1/1/1)#use-radius-server 1.1.1.2

I hope that this helps, I spent a day trying to figure it out 🙂

 

 

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The Packet Wizard : DHCP Troubleshooting

In todays scenario, I am going to walk through some changes I made and troubleshooting steps for when I recently added a moved a old SSID/Subnet off an old legacy wireless network onto a new network same IP space and SSID that requires RADIUS authentication.

These steps can be applied to many different scenarios for troubleshooting DHCP, I just made these ones specific since it was something I recently had to troubleshoot.

Here is a basic diagram of the setup, showing all the moving parts would be overkill for the diagram. The steps on what to do and troubleshooting are below the diagram.

What you will need:

Authentication Server IP

Authentication Secret Key

DHCP Server IP

Subnet and Mask that is being moved

SSID/Subnet being moved

Work and or Troubleshooting that needs to be done:

  1. Add the VLAN to the switches required
  2. Add the virtual interface on the firewall (gateway)
  3. Trunk the new vlan to the switch and configure the ports
  4. Setup DHCP helper to point to the DHCP server
  5. Allow DHCP traffic from the new subnet to the DHCP server
  6. Configure Radius on new Network
  7. Configure new SSID and network settings on Wireless LAN Controller