Cisco IP Phone 6851

Table 8: IPv4 Address Settings Submenu
DescriptionDefaultField Type
or Choices
Field
Indicates whether the phone has DHCP enabled.
• DNS1—Identifies the primary Domain Name System (DNS)
server that the phone uses.
• DNS2—Identifies the secondary Domain Name System
(DNS) server that the phone uses.
• DHCP address released—Releases the IP address that DHCP
assigned. This field is editable if DHCP is enabled. If you
wish to remove the phone from the VLAN and release the
IP address for reassignment, set this field to Yes and press
Set.
DHCPConnection type
When DHCP is disabled, you must set the Internet Protocol (IP)
address of the phone.
• Static IP address—Identifies the IP that you assign to the
phone. The phone uses this IP address instead of acquiring
an IP from the DHCP server on the network.
• Subnet Mask—Identifies the subnet mask used by the phone.
When DHCP is disabled, you must set the subnet mask.
• Gateway address—Identifies the default router used by the
phone.
• DNS1—Identifies the primary Domain Name System (DNS)
server that the phone uses. When DHCP is disabled, you
must set this field manually.
• DNS2—Identifies the primary Domain Name System (DNS)
server that the phone uses. When DHCP is disabled, you
must set this field manually.
If you assign an IP address with this field, you must also assign
a subnet mask and a gateway address. See the Subnet Mask and
Default Router fields in this table.
Static IP
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Configure the Network from the Phone