04-27-2012 07:09 AM - edited 03-12-2019 09:45 AM
This document is intended to guide users to learn more about IPv6 deployment in Voice Over IP Network. This document covers the IPv6 functionality & features on Cisco UC Networks and deployment examples.
With the system release of CUCM 7.1 Cisco systems has introduced IPv6 functionality to a range of UC products. Today Cisco Introduces, Voice Over IPv6 ( VoIPv6) feature includes IPv4 and IPv6 dual stack support on voice gateways and MTP, IPv6 support for SIP trunks, and Skinny Client Control Protocol (SCCP)-controlled analog gateways.The primary focus of this document is on new IPv6 functionality for Cisco UC networks.
IPv6 Support in Cisco Unified Communications Devices
Addressing Modes supported for Cisco Unified Communications Devices
IPv4 SupportIPv4 & IPv6 Support
IPV4 Supported devices - Unified CME - MGCP Gateways - H.323 Gatewys - Unified CM H.323 and Intercluster trunks - video Conferecing Endpoints - Cisco Unified Video Advantage - Soft Phones - WIFI IP Phones - All SIP Phones - Older SCCP Phones | IPV4 & IPV6 Supported devices - CUCM 7.1 and later - SCCP ISR Analogue Ports - SIP ISR Gateways - VG224 Analogue Gateways - Newer SCCP Phones - Unified CM SIP Trunks |
CUCM Device configuration to enable IP addressing Mode - IPv4 & IPv6
Goto Device > Device Settings > Common Device Profile
CUCM can support :
• One Link Local Address
• One Unique Local Address or
• One Global Address
• ( and an IPv4 address )
Goto System > Enterprise Parameters
Goto Device > Device Settings > Common Device Profile
CUCM SIP Gateway Device configuration to enable IP addressing Mode - IPv4 & IPv6
IPv6 SIP Gateways & Trunks - ANAT (Alternative Network Address Type) with SIP Profile and Device configuration
IPv6 SIP Trunk Configuration on CUCM
•RFC “mandates” privacy and encryption using IPSec
•For UC environments SRTP is used as SRTP is specifically crafted for UDP based RTP traffic and has a lower packet overhead.
•CUCM uses TLS and SRTP - No key exchange required as keys are distributed by CUCM
•IPv4 <-->IPv6 MTPs transparently pass SRTP streams
•Phones use built in MIC
Figure shows the IPv4 & IPv6 supporting devices on CUCM Dual stack deployment
Figure shows the IPv4 & IPv6 supporting Applications on CUCM Dual stack deployment
•For Dual Stack deployments MTPs are not required as CUCM will select the common addressing type for media i.e. IPv4
•Except for dual stack devices that are forced (via Common Device Configuration setting) to use IPv6 for Media – in which case an MTP is required
Thank you for providing detail IPv6 deployment information.
The following new components will also support dual stack for CUCM 8.6.x or higher:
• IP phones SCCP: 6901/6911 /6921/6941/6945/6961
• Cisco Unity Connection using SCCP or SIP trunk IPv6 Interface
http://www.cisco.com/en/US/docs/voice_ip_comm/connection/8x/upgrade/guide/8xcucrug051.html
Hi Jay Shah
Thanks for sharing the latest updates.
Regards
Lavanya
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