(RADIATOR) Help understanding handlers to allow a guest vlan fallback on wireless

[doc@dcclrt.co.uk]

Hi,

Our users do not have set vlan parameters in the users record within Novell 
Directory Services because we want them to be able to roam from site to site 
where each site uses a different vlan and does not cross sites. In order to 
successfully configure a default fallback vlan based on my config shown, 
could you possibly give me a complete config that would work please. This 
might give me a better understanding as to how the information you gave me 
before actually fits together in the config file properly. Sorry if this 
sounds dumb but I dont quite get it yet. :(

In the config file I have I did add AddToReply attributes but I'm not 
convinced my AP's were assigning the vlan correctly.
The AP documentation says to use:-
AddToReply Tunnel-Type = VLAN
Tunnel-Medium-Type = Ether_802
Tunnel-Private-Group = VLANID

but when I look at he station status on the AP there is no VLAN ID 
associated with the connected clients.

Regards

Dave



----- Original Message ----- 
From: "Hugh Irvine" <hugh at open.com.au>
To: <doc at dcclrt.co.uk>
Cc: <radiator at open.com.au>
Sent: Wednesday, December 01, 2004 8:45 PM
Subject: Re: (RADIATOR) Help understanding handlers to allow a guest vlan 
fallback on wireless



Hello -

Normally you would have the correct vlan for a user stored in his/her
user record and you would return it from the LDAP search.

If all users have the same vlan, then you can use AddToReply in the
AuthBy LDAP2 clause, with an additional AuthBy INTERNAL clause with a
different AddToReply for guests.

Something like this:

AuthByPolicy ContinueUntilAccept

<AuthBy LDAP2>
.....
# vlan attributes
AddToReply .....
.....
</AuthBy>

<AuthBy INTERNAL>
DefaultResult ACCEPT
# default guest vlan attributes
AddToReply .....
.....
</AuthBy>

regards

Hugh


On 2 Dec 2004, at 05:01, doc at dcclrt.co.uk wrote:

> Hi Everyone.
>
> I'm using Enterasys Roamabout 3000 AP to authenticate users via radiator.
> Radiator is configured to LDAP to NDS which is working successfully with 
> the current configuration.
> I have many different sites that are on different VLAN's where wireless 
> users will need to authenticate.
> Failing authentication we want to have a default guest vlan assigned 
> whereby the user can then download the client needed to for 802.1x 
> authentication.
>
> I just do not know the correct way to go about this in the configuration 
> file. I've tried and failed but I dont fully understand handlers and 
> realms and how they interact with the rest of the config file. (Yes Ive 
> RTFM many many times).
>
> Below is the radiator config file I am using at the moment, it is by no 
> means complete.
> As it is, the config file is configured to authenticate a testbed set of 
> users but I want to add configuration for further Clients with the same 
> LDAP authentication method and also if necessary a default vlan fallback 
> mechanism.
>
> It may well be that my AP does not support "dynamic vlan" setup. The AP is 
> connected to a Cisco 2950 with IOS Enhanced Image.
>
> Any help would be greatly appreciated.
>
> ---------------------
> Foreground
> LogStdout
> LogDir /var/log/radius
> LogFile %L/%Y-%m-log
> DbDir /etc/radiator
> Trace 4
> AuthPort 1812
> #AcctPort 1813
>
> <Client xxx.xxx.xxx.xxx>
> IdenticalClients xxx.xxx.xxx.xxx
> Secret 1234
> DupInterval 0
> Identifier isu
> </Client>
>
> <Handler Client-Identifier=isu>
> <AuthBy LDAP2>
> # Tell Radiator how to talk to the LDAP server
> ServerChecksPassword 1
> Host xxx.xxx.xxx.xxx
> Port 389
>
> # You will only need these if your LDAP server
> # requires authentication. These are the examples
> # in a default OpenLDAP installation
> # see /etc/openldap/slapd.conf
> # AuthDN CN=ADMIN, O=MMU
> # AuthPassword xxxxxxxxxx
>
> # This the top of the search tree where users
> # will be found. It should match the configuration
> # of your server, see /etc/openldap/slapd.conf
> BaseDN o=xxx
>
> # This is the LDAP attribute to match the radius user name
> UsernameAttr cn
>
> # You can enable debugging of the Net::LDAP
> # module with this:
> #Debug 255
>
> EAPType TTLS
> EAPTLS_CAFile /etc/radiator/certificates/xxxxxxx.pem
> EAPTLS_CertificateFile /etc/radiator/certificates/cert-srv.pem
> EAPTLS_CertificateType PEM EAPTLS_PrivateKeyFile 
> /etc/radiator/certificates/xxxxxxxxx.xxx
> EAPTLS_PrivateKeyPassword whatever
> EAPTLS_MaxFragmentSize 1000
> AutoMPPEKeys
>
> # StripFromReply Tunnel-Type,\ # Tunnel-Medium-Type,\
> # Tunnel-Private-Group-ID
> # AddToReply Tunnel-Type = VLAN,\
> # Tunnel-Medium-Type = Ether_802,\
> # Tunnel-Private-Group = 2 </AuthBy> # PostAuthHook 
> file:"%D/hooks/vlan-ascii-to-binary-postauth" </Handler>
>

NB:

Have you read the reference manual ("doc/ref.html")?
Have you searched the mailing list archive
(www.open.com.au/archives/radiator)?
Have you had a quick look on Google (www.google.com)?
Have you included a copy of your configuration file (no secrets),
together with a trace 4 debug showing what is happening?

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anywhere. Available on *NIX, *BSD, Windows, MacOS X.
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