Technical information

Cuda 12000 IP Access Switch CLI Reference Guide
privacy multicast ip 339
privacy multicast ip
Maps an IP multicast address to a security association (SA) and its associated encryption and
authentication parameters. Use the no form of the command to remove the mapping. This
command applies to BPI+ only.
A CMTS may map downstream multicast flows to any of three classes of BPI+ security
associations: primary, static, or dynamic. If you map an IP multicast group’s traffic to a primary
SA, only the single cable modem that belongs to that SA can access that multicast group. If you
map the multicast group to a static or dynamic SA, then multiple cable modems may access that
multicast group.
Use the privacy multicast mac command to assign multicast SAs to specific cable modems.
Mode
interface:cable:csi(<c/s/i>)
Syntax
privacy multicast ip <index> <multicast-ip-address> <mask>
said <number> sa-type {dynamic | none | primary | static}
encrypt-alg {des40cbcMode | des56cbcMode | none} authent-alg none
no privacy multicast ip <index>
Arguments
<index> Specifies an index value that identifies the IP multicast address
mapping entry. Values range from 1 to 10000.
<multicast-ip-address> Specifies the Class D IP address (for example, 239.1.1.1) of the
multicast group to which you are applying the security association
specified by the SAID.
<mask> Specifies the mask, in dot-notation format, that can be used with
a single multicast group address or to specify a multicast address
range. For example, a multicast address of 239.1.0.0 and a mask
of 255.255.0.0 means that the SA applies to all multicast groups
within 239.1.0.0.
For a single multicast group address (for example, 239.2.2.2),
specify a mask of 255.255.255.255.
said <number> Specifies the Security Association Identifier (SAID) of the SA.
Values range from 8192 to 16383.