Option 43 does not work with ruckus r300 and Cisco C3750, IP is assigned to r300 but option 43 is not

[matej_gololicic]

Option 43 does not work with ruckus r300.

The following is the configuration on Cisco switch:
===================
!
ip dhcp pool alfa
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
dns-server 192.168.2.1
option 43 hex f104.c0a8.6464
!
Option 43 was configured according to this article: https://support.ruckuswireless.com/an...

If I issue "show ip dhcp bindinds" command on Cisco switch I can see that the connected R300 gets its IP:

Switch#show ip dhcp binding
IP address Client-ID/ Lease expiration Type
Hardware address
192.168.2.2 01e0.107f.3673.90 Mar 02 1993 12:35 AM Automatic
192.168.2.3 0100.21cc.d04d.4f Mar 02 1993 12:35 AM Automatic
Switch#

01e0.107f.3673.90 is R300 MAC address.

I am connected to the same subnet with my PC.
I connect to R300 via SSH session and check DHCP options:
Here's the output. As you can see DHCP option 43 is not set on R300.

OK
rkscli: get director
------ ZoneDirector Info ------
Primary Controller : n/a
Secondary Controller : n/a
DHCP Opt43 Code : 3
AP is in Stand-alone mode.
OK

What do you think is the issue here? I cannot deploy APs if this setting is not working.
Thank you for reply!

[martin_martin]

Hi Matej,

Please check the dhcp document.

The option 43 should be in hex and without the dots (.)

[matej_gololicic]

Hi. I've checked the documentation and set up Cisco switch according to Ruckus document.

Cisco IOS will put dots in values, not me.

Here's how it is configured.

Switch(dhcp-config)#ip dhcp pool alfa
Switch(dhcp-config)#option 43 hex f104c0a86464
Switch(dhcp-config)#end

As you can see I've inputted the value without dots.

When I issue "show running" command on Cisco I get the following output for DHCP:

!
ip dhcp pool alfa
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
dns-server 192.168.2.1
option 43 hex f104.c0a8.6464
!

It's not me who places the dots. It works as designed.

Is this option 43 even working with r300?
(firmware version is: 9.8.1.0.99)

[keith_brown_695]

Try it this way and see how it works.
!
ip dhcp pool alfa
network 192.168.2.0 255.255.255.0
default-router 192.168.2.1
dns-server 192.168.2.1
option 43 ascii x.x.x.x
!

[martin_martin]

Did you also exclude teh 192.168.2.1 otherwise that might give a problem as-well.