RADIUS authentication on a HP GbE2c L2/L3 Blade Switch

To configure a HP GbE2c L2/L3 Ethernet Blade Switch for RADIUS authentication you need to use radius-server with the following syntax.

radius-server primary-host serverIp
radius-server primary-host serverIp key "SecretKeyHere"
radius-server port 1812
radius-server timeout 10
radius-server enable
no radius-server telnet-backdoor
radius-server secure-backdoor

The first and second lines setup the server/key to authenticate against.

The third/forth defines the port/timeout for the server we configured in the first lines.

The last 3 then enable the server and enable a backdoor so we can authenticate against the switch if the RADIUS server is down.