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--- en:dpi:bras_bng:bras_l2_subs_id:start [2023/10/13 13:45] – ↷ Page moved from en:dpi:bras_bng:opt_bras_l2:bras_l2_subs_id:start to en:dpi:bras_bng:bras_l2_subs_id:start elena.krasnobryzh
+++ en:dpi:bras_bng:bras_l2_subs_id:start [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
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-====== Identification of L2 subscribers ======
-{{indexmenu_n>3}}
-FastDPI 12 introduces support for identifying L2 subscribers by VLAN/Q-in-Q.
-Previously, the way of subscriber identification was only his MAC-address, which could lead to problems if two different subscribers belonging to different VLANs, have the same MAC-address.
-FastDPI 12 introduces a new fastdpi.conf setting: ''bras_subs_id'', which is a type of L2 subscriber identification. It specifies a list, in order of preference, of what to consider to be the L2-subscriber ID.
-Valid values in the list:
-  * ''mac'' -  The subscriber's MAC address (srcMAC of the packet from the subscriber) is the subscriber's identifier. This type is applicable to any network, including VLAN and Q-in-Q (VLANs are not counted).
-  * ''vlan+mac'' - the subscriber identifier is the VLAN + subscriber's MAC. This type applies only to VLANs, but does not apply for Q-in-Q.
-  * ''qinq'' - the subscriber identifier is Q-in-Q. Applicable for Q-in-Q networks only.
-  * ''qinq+mac'' - subscriber identifier is Q-in-Q + subscriber's MAC. Applicable for Q-in-Q networks only.
-The default value is ''bras_subs_id=mac'' (for compatibility with previous versions)
-Setup example:
-<code>
-bras_subs_id=qinq+mac,vlan+mac,mac
-</code>
-is interpreted as follows:
-  * If the packet is Q-in-Q - then the identifier is Q-in-Q + subscriber's MAC,
-  * otherwise if the package is VLAN - then the identifier is VLAN + subscriber's MAC,
-  * otherwise the identifier is the subscriber's MAC.
-Instead of a list you can set it to ''auto'':
-<code>
-bras_subs_id=auto
-</code>
-which is equal to:
-<code>
-bras_subs_id=qinq+mac,vlan+mac,mac
-</code>
-We recommend to use the ''auto'' value for ''bras_subs_id''.
-If no identification type is defined for an incoming packet, then such subscriber is not terminated, all packets of the subscriber are dropped. This is possible for the following example:
-<code>
-bras_subs_id=qinq+mac
-</code>
-when the incoming packet from the subscriber is not Q-in-Q.
-==== Radius Authorization ====
-In the Radius L2 authorization request, the subscriber ID is passed in the VSA attribute ''VasExperts-L2-SubsId'' as a string:
-<code>
-ATTRIBUTE   VasExperts-L2-SubsId           14   string
-</code>
-The format of the string representation of the identifiers is as follows:
-  * ''mac'': "[1]xx:xx:xx:xx:xx:xx", xx - subscriber's MAC address, e.g.: ''[1]02:42:89:33:7b:3e'' - subscriber MAC=02:42:89:33:7b:3e
-  * ''vlan+mac'': "[2]N/xx:xx:xx:xx:xx:xx", N - VLAN number, e.g., ''[2]56/02:42:89:33:7b:3e'' - subscriber MAC=02:42:89:33:7b:3e в VLAN=56
-  * ''qinq'': "[3]N.N", N - VLAN numbers, e.g.: ''[3]56.234'' - subscriber in Q-in-Q=56.234
-  * ''qinq+mac'': "[4]N.N/xx:xx:xx:xx:xx:xx", e.g.: ''[4]56.234/02:42:89:33:7b:3e'' - subscriber MAC=02:42:89:33:7b:3e в Q-in-Q=56.234
-If the subscriber's L2 identifier is unknown, then ''VasExperts-L2-SubsId=[0]<n/a>''.

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