Cisco Ip Phone 8800 Series Administration Guide For Cisco Unified Communications Manager - Cisco 8800 Series Administration Manual

Item Description
IP preference mode
for media
IPv6 auto Indicates that for media the device uses an IPv4 address to connect to the Cisco
configuration Unified Communications Manager.
IPv6 duplicate
address protection
IPv6 accept redirect Indicates if phone accepts the redirect messages from the same router that is used for
message the destination number.
IPv6 reply multicast Indicates that the phone sends an Echo Reply message in response to an Echo Request
echo request message sent to an IPv6 address.
IPv6 load server Used to optimize installation time for phone firmware upgrades and off load the WAN
by storing images locally, negating the need to traverse the WAN link for each phone's
upgrade.
IPv6 log server
IPv6 CAPF server Indicates the IP address and port of the remote logging machine to which the phone
sends log messages.
DHCPv6 Indicates the method that the phone uses to get the IPv6 address.
When DHCPv6 is enabled, the phone gets the IPv6 address either from DHCPv6
server or from SLAAC by RA sent by the IPv6-enabled router. And if DHCPv6 is
disabled, the phone will not have any stateful (from DHCPv6 server) or stateless
(from SLAAC) IPv6 address.
Note
IPv6 address Displays the current IPv6 address of the phone.
Two address formats are supported:
• Eight sets of hexadecimal digits separated by colons X:X:X:X:X:X:X:X
• Compressed format to collapse a single run of consecutive zero groups into a
IPv6 prefix length Displays the current IPv6 prefix length for the subnet.
IPv6 default router Displays the default IPv6 router used by the phone.
IPv6 DNS server 1–2 Displays the primary and secondary DNSv6 server used by the phone
IPv6 Alternate TFTP Displays if an alternate IPv6 TFTP server is used.

Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager

Unlike DHCPv4, even DHCPv6 is disabled the phone can still generate a
SLAAC address if autoconfigure is enabled.
single group represented by a double colon.
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