RADIUS

Name

Framed-IP-Netmask

Synopsis

Attribute Number	9
Length	6
Value	IPADDR
Allowed in	Access-Request, Access-Accept
Prohibited in	Access-Reject, Access-Challenge
Presence in Packet	Not required
Maximum Iterations	1

This attribute is used when the connection needs a specific netmask number. Even though a client-based DHCP server often assigns netmasks to connections, in certain cases when groups of IP addresses aggregated by CIDR are distributed by the RADIUS server, specific netmasks may be necessary.

While this attribute can appear within an Access-Request packet, the server is not required to honor it, although it may do so.