Set Up Phone To Not Use DHCP
When not using DHCP, you must configure the IP address, subnet mask, TFTP server, and default router
locally on the phone.
Procedure
Step 1
Press Applications and choose Administrator Settings > Network Setup > Ethernet Setup > IPv4 Setup.
Step 2
To disable DHCP and manually set an IP address:
a) Set DHCP Enabled to No.
b) Enter the static IP address for phone.
c) Enter the subnet mask.
d) Enter the default router IP addresses.
e) Set Alternate TFTP Server to Yes, and enter the IP address for TFTP Server 1.
Step 3
Press Apply.
IPv6
IPv6 addressing is supported on the phone. A valid IPv6 address is 128 bits in length, including the subnet
prefix.
IPv6 addresses must be in one of the following formats:
•
Eight sets of four hexadecimal digits separated by colons where the leftmost digits represent the
highest-order bits. Any leading or trailing zeros in each group may be omitted.
•
Compressed format to collapse a single run of consecutive zero groups into a single group represented
by a double colon. Note that this can only be done once in an address.
Before IPv6 setup options can be configured on your device, IPv6 must be enabled and configured in Cisco
Unified Communication Administration. The following device configuration fields apply to IPv6 configuration:
•
IP Addressing Mode
•
IP Addressing Mode Preference for Signalling
If IPv6 is enabled in the Unified cluster, the default setting for IP addressing mode is IPv4 and IPv6 (dual-stack).
In this addressing mode, the phone will acquire and use one IPv4 address and one IPv6 address. It can use
the IPv4 and the IPv6 address as required for media. The phone uses either the IPv4 or IPv6 address for call
control signalling to Unified CM.
For more information, see the section on Common Device Configuration in Cisco Unified Communications
Manager Feature and Services Guide, “IPv6 Support in Cisco Unified Communications Devices”.
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 10.0
(SIP)
119
Cisco Unified IP Phone Settings
IPv6
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