Alpha Technologies DSM3 for XM2 - Technical Manual - Manual (Page 14)

14 745-814-B8-001, Rev. C (03/2014)
3.0 Network Configuration, continued
3.2 Establishing IP Connectivity
The DSM3 Series supports the CableLabs DOCSIS 2.0+IPv6 implementation. The main benefit of IPv6 is
its expanded addressing capability, increasing the address space from 32 to 128 bits, providing virtually
unlimited number of networks and systems. The DSM3 Series determines the IP provisioning mode via
the CableLabs SNMP MIB parameter docsIf3CmMdCfgIpProvMode (SNMP OID: 1.3.6.1.4.1.4491.2.1
.20.1.31.1.1). The DSM3 Series will support the following configurable IP Provisioning Mode Override
policies:
• Honor MDD: The cable modem of the DSM3 Series unit will acquire an IPv6 or IPv4 address as
directed by the MAC Domain Descriptor (MDD) message for provisioning and operation.
• IPv4 only: The cable modem of the DSM3 Series unit will acquire a single IPv4 address for the CM
management stack, overriding the TLVs in the MDD message.
• IPv6 only: The cable modem of the DSM3 Series unit will acquire a single IPv6 address for the CM
management stack, overriding the TLVs in the MDD message.