Cisco AP's with Option 43

[Randall C Grimshaw]

We do not make subnet distinctions as you are attempting, my config (sans actual address) is below. You might try placing the subclass in subnet definitions leaving the class outside.

option space LWAPP;
option LWAPP.controller code 241 = ip-address;
class "LWAPP" {
  match option vendor-class-identifier;
}

subclass "LWAPP" "Cisco AP c1130"
{
  vendor-option-space LWAPP;
  option LWAPP.controller 10.20.30.40;
}
subclass "LWAPP" "Cisco AP c1200"
{
  vendor-option-space LWAPP;
  option LWAPP.controller 10.20.30.40;
}
subclass "LWAPP" "Cisco AP c1240"
{
  vendor-option-space LWAPP;
  option LWAPP.controller 10.20.30.40;
}
subclass "LWAPP" "Cisco AP c1241"
{
  vendor-option-space LWAPP;
  option LWAPP.controller 10.20.30.40;
}
subclass "LWAPP" "Cisco AP c1140"
{
  vendor-option-space LWAPP;
  option LWAPP.controller 10.20.30.40;
}
subclass "LWAPP" "ArubaAP"
{
  vendor-option-space LWAPP;
  option LWAPP.controller 10.20.30.40;
}

Randy

From: dhcp-users-bounces at lists.isc.org [mailto:dhcp-users-bounces at lists.isc.org] On Behalf Of MONTFORD, AUSTIN
Sent: Friday, May 15, 2009 2:04 PM
To: dhcp-users at lists.isc.org
Subject: Cisco AP's with Option 43

Hi,
This may be me doing something boneheaded but I'm a little frustrated at the moment so not seeing it.  I am trying to get my dhcp servers to send 2 different models of cisco access points to 2 different wireless controllers depending on the model the ap is with option 43.  I used the cisco recommended linux setup (ubuntu hardy lts), but when I run wireshark to test it my dhcp server isn't sending option 43 at all.   Using the sniffer I checked that the 1142 ap is sending "Cisco AP c1140" in the dhcp request and it is.

Can anyone tell what I did wrong here?  I have multiple ap subnets that are setup the same so I just included the one below.  If any more information is needed please let me know.

Thanks!
Austin


# http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00808714fe.shtml#t4
option space Cisco_LWAPP_AP;
option Cisco_LWAPP_AP.server-address code 43 = string;

max-lease-time 72000;
default-lease-time 28800;
ddns-update-style none;
ignore client-updates;

....

# Wireless AP's
subnet 10.1.3.0 netmask 255.255.255.128
{
range   10.1.3.10 10.1.3.120;
option routers 10.1.3.1;
max-lease-time 300000;
default-lease-time 259200;

class "Airespace.AP1200" {
 match if option vendor-class-identifier = "Airespace.AP1200";
 option vendor-class-identifier "Airespace 1200";
 vendor-option-space Cisco_LWAPP_AP;
 option Cisco_LWAPP_AP.server-address f1:04:0A:01:03:02; }

class "Cisco AP c1140" {
 match if option vendor-class-identifier = "Cisco AP c1140";
 option vendor-class-identifier "Cisco AP c1140";
 vendor-option-space Cisco_LWAPP_AP;
 option Cisco_LWAPP_AP.server-address f1:04:0A:01:05:84; }

}

....
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