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How to setup request routing in SBR for Undecorated user-names

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Article ID: KB25008 KB Last Updated: 04 Mar 2017Version: 2.0
Summary:
This article provides information on how to set up request routing for undecorated user-names in SBR.
Symptoms:
The Goal here is to route the radius authentication requests, which contain undecorated user-names, to the same authentication method that authenticates the decorated user-names.

For Example, if request routing is configured based on the @ suffix delimiter and the realm suffix is sbr.com, there will not be any issues in routing a request that contains the bdavid@sbr.com user to the correct realm. However, in the incoming request, if the username is bdavid instead of bdavid@sbr.com, then there will be issues in the request getting routed to the correct realm.

As the the bdavid user-name is not decorated (it does not contain the realm suffix character), the request will not be routed to the realm as defined in Proxy.ini; instead  it will fall back to the local processing and result in rejection, if no matching user is found.
Cause:

Solution:
To setup request routing for undecorated user-names, a separate realm should be created and the following changes should be made in the Proxy.ini:

  1. Edit Proxy.ini. Under the [Processing] section, add the Undecorated entry.

  2. Under the [Directed] section (if directed realm is configured), configure a separate realm and create a separate .dir by using the same realm name in the SBR install directory.

  3. Under the [Realms] section (if the proxy realm is configured), configure a separate realm and create a separate .pro file by using the same realm name in SBR install directory.

  4. Associate an <Undecorated> marker with a Directed realm name or Proxy realm name, which were created in step 2 and 3.

Note: Only one realm listed in the '[Realms]' or '[Directed]' sections of proxy.ini can be configured with the '= <undecorated>' setting. If more than one realm is associated with the '= <undecorated>' setting, Steel-Belted Radius enables the first entry it finds and writes an error message, which identifies the duplicate realms to the radius log file.

The following example is a proxy.ini that can perform request routing for Undecorated user-names.
 
  • The realm suffix character is @.

  • The ream suffix is sbr.com.

  • Request routing for Decorated names is performed by using the Realm1 directed realm.

  • Request routing for Undecorated names is performed by using the Realm2 directed realm.

Note: realm1.dir and realm2.dir should exist in the SBR install directory and configured with the corresponding auth methods.
[Processing]
Suffix
Undecorated
;Prefix
;DNIS
;Attribute-Mapping
;Script <RealmScript>

[Realms]
;<RealmName1>
;<RealmName2>
;<RealmNameX>

[Directed]
realm1 = sbr.com
realm2 = <Undecorated>

[DirectedAcctMethods]
;<Description> = <PathAndFile>

[AuthAttributeMap]
;<RealmName>
; <Attribute> = <Value>
; <Attribute>
; <~Attribute> = <Value>
; <~Attribute>

[AcctAttributeMap]
;<RealmName>
; <Attribute> = <Value>
; <Attribute>
; <~Attribute> = <Value>
; <~Attribute>

[Configuration]
;RealmPrefix = /
RealmSuffix = @
;UseMasterDictionary = yes
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