Configuring the Radius-BNG Network Element

You can define up to 500 BNG devices.

To configure the Radius-BNG network element:

From the Network section of the navigation pane, select Network Elements.
The content tree displays a list of network element groups; the initial group is ALL.
From the content tree, select a network element.
The Network Element Administration page opens in the work area.
Select the Radius-BNG tab and then click Modify.
The Modify Network Element page opens.
Configure the following General information:
1. NAS ID—Enter a unique identification string for this device.
2. IP Address—Enter up to 20 IPv4 addresses supported by this device.
  To add an address to the list, enter it and click Add. To delete an address, select it from the list and click Delete.
3. Subscriber key—Select a subscriber key from the list of pre-defined keys in the RADIUS dictionary.
  The key is used for looking up subscribers associated with a RADIUS request. If a BNG device is identified while processing the associated request, this value is overridden by the subscriber key specified in the BNG device.
  CAUTION: You must specify a subscriber key either here or in the BNG device.
Configure the following Accounting information.
Note: Any values entered in this section override the overall settings for MPE devices.
1. Interim Update Interval (sec.)—Enter the default interim update interval. If a RADIUS Accounting-Start message specifies an interim update interval, an MPE device uses the value specified in the message; otherwise, it uses this value.
  Enter an integer from 1–604800 seconds (seven days). The default is 86400 seconds (one day).
2. Maximum Missed Updates—Enter the number of missed updates before the RADIUS session becomes stale and must be purged. This value, multiplied by the Interim Update Interval, gives the number of seconds before a RADIUS session becomes stale.
  Enter an integer from 1–10 updates. The default is 3 missed updates.
3. Accounting Shared Secret—Enter the accounting shared secret used to decrypt messages. If specified, this value overrides the value specified in the MPE configuration setting.
  Enter a string. The default is no shared secret.
Configure the following CoA information:
1. CoA Destination Port—Enter the UDP port used to send CoA messages from an MPE device to this BNG device and to receive CoA-ACK messages.
  The default port is 3799.
2. Session ID—Select the session ID (a VSA code and name that identifies the session identifier) from the list.
  The default is 44/Acct-Session-Id.
3. Destination—Enter an IP address or fully qualified domain name that specifies where the CoA message should be sent while processing Accounting requests.
4. CoA Shared Secret—Enter a shared secret value for CoA messages.
  Enter a string. The default is no shared secret. If entered, this value overrides the overall setting for MPE devices.
5. Sub-session ID—Select the sub-session ID from the list. This is a VSA for a chosen vendor ID that is used to identify a sub-session created by the BNG on receipt of a CoA message, so that the CoA is not sent in response to an Accounting-Start or Interim-Update message for a sub-session.
6. Sub-session pattern—Enter a regular expression pattern to match against the Sub-Session ID. If the pattern matches, then a CoA message is not sent for the corresponding Accounting-Start or Interim-Update message.
Click Save.

The Radius-BNG network element is configured.