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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.

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ADC Cuda 12000 Informations techniques Page 343

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ADC Cuda 12000 Informations techniques Page 343

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