Cisco 7800 Series Administration Manual page 28

Network Protocols
Network Protocol
Hypertext Transfer Protocol
(HTTP)
IEEE 802.1X
Internet Protocol (IP)
Link Layer Discovery Protocol
(LLDP)
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
14
Purpose
HTTP is the standard protocol for
transfer of information and
movement of documents across the
Internet and the web.
The IEEE 802.1X standard defines
a client-server-based access control
and authentication protocol that
restricts unauthorized clients from
connection to a LAN through
publicly accessible ports.
Until the client is authenticated,
802.1X access control allows only
Extensible Authentication Protocol
over LAN (EAPOL) traffic through
the port to which the client is
connected. After authentication is
successful, normal traffic can pass
through the port.
IP is a messaging protocol that
addresses and sends packets across
the network.
LLDP is a standardized network
discovery protocol (similar to CDP)
that is supported on some Cisco and
third-party devices.
About the Cisco IP Phone
Usage Notes
Cisco IP Phones use HTTP for
XML services, provisioning,
upgrade and for troubleshooting
purposes.
The Cisco IP Phone implements the
IEEE 802.1X standard through
support for the following
authentication methods: EAP-FAST
and EAP-TLS.
When 802.1X authentication is
enabled on the phone, you should
disable the PC port and voice
VLAN.
To communicate with IP, network
devices must have an assigned IP
address, subnet, and gateway.
IP addresses, subnets, and gateways
identifications are automatically
assigned if you are using the Cisco
IP Phone with Dynamic Host
Configuration Protocol (DHCP). If
you are not using DHCP, you must
manually assign these properties to
each phone locally.
The Cisco IP Phones support IPv6
address. For more information, see
the documentation for your
particular Cisco Unified
Communications Manager release.
The Cisco IP Phone supports LLDP
on the PC port.