RADIUS Attributes Reference
7750 SR RADIUS Attributes Reference Guide Page 73
Business Service Access
Table 11: Business Access (description)
Attribute ID Attribute Name Description
22 Framed-Route Routing information (IPv4 managed route) to be configured on the NAS for a
host (dhcp, pppoe, arp) that operates as a router without NAT (so called routed
subscriber host). The route included in the Framed-Route attribute is accepted
as a managed route only if it's next-hop points to the hosts ip-address or if the
next-hop address equals 0.0.0.0 or if the included route is a valid classful
network in case the subnet-mask is omitted. If neither is applicable, this
specific framed-route attribute is ignored and the host is instantiated without
this specific managed route installed. A Framed-Route attribute is also
ignored if the SAP does not have anti-spoof configured to nh-mac (the host
will be installed as a standalone host without managed route). Number of
routes above Limits are silently ignored. Optionally, a metric, tag and/or
protocol preference can be specified for the managed route. If the metrics are
not specified or specified in a wrong format or specified with out of range
values then default values are used for all metrics: metric=0, no tag and
preference=0. If an identical managed route is associated with different routed
subscriber hosts in the context of the same IES/VPRN service up to <max-
ecmp-routes> managed routes are installed in the routing table (configured as
ecmp <max-ecmp-routes> in the routing instance). Candidate ECMP Framed-
Routes have identical prefix, equal lowest preference and equal lowest metric.
“lowest ip next-hop” is the tie breaker if more candidate ECMP Framed-
Routes are available than the configured <max-ecmp-routes>. Other identical
managed routes are shadowed (not installed in the routing table) and an event
is logged. An alternative to RADIUS managed routes are managed routes via
host dynamic BGP peering.
Valid RADIUS learned managed routes can be included in RADIUS
accounting messages with following configuration: configure subscriber-
mgmt radius-accounting-policy <name> include-radius-attribute framed-
route. Associated managed routes for an instantiated routed subscriber host
are included in RADIUS accounting messages independent of the state of the
managed route (Installed, Shadowed or HostInactive).
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