Configuring Dhcp, Static Ip, Or Pppoe Connection Type - Cisco SPA301 Administration Manual

Configuring Security, Quality, and Network Features
Setting Security Features
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide

Configuring DHCP, Static IP, or PPPoE Connection Type

You can set the connection type to one of the following:
• Dynamic Host Configuration Protocol (DHCP) receives an IP address from
the network DHCP server. Cisco SPA IP phones typically operate in a
network where a DHCP server assigns the devices their IP addresses.
Because IP addresses are a limited resource, the DHCP server periodically
renews the device lease on the IP address. If a phone loses its IP address
for any reason, or if some other device on the network is assigned its IP
address, the communication between the SIP proxy and the phone is either
severed or degraded. Whenever an expected SIP response is not received
within a programmable amount of time after the corresponding SIP
command is sent, the
device to request a renewal of its IP address. If the DHCP server returns the
IP address that it originally assigned to the phone, the DHCP assignment is
presumed to be operating correctly. Otherwise, the phone resets to try to
fix the issue.
• Static IP—A static IP address for the phone.
• PPPoE—Point-to-Point Protocol over Ethernet (PPPoE) connects users on an
Ethernet network to the Internet through a common broadband medium,
such as DSL line, wireless device, or cable modem. All users on an Ethernet
share a common connection, so the Ethernet principles supporting multiple
users in a LAN combine with the principles of PPP that apply to serial
connections.
To set the connection type, navigate to Admin Login > advanced > Voice >
System. Under Internet Connection Type choose the Connection Type:
• Dynamic Host Configuration Protocol (DHCP)
• Static IP, and configure the following:
- Static IP Address of the phone.
- Netmask of the phone.
- Gateway IP address
If you are configuring a Cisco SPA525G or Cisco SPA525G2, also configure:
- LAN MTU—LAN Maximum Transmission Unit size. Default value: 1500.
- Duplex Mode—Choose the speed/duplex for the phone Ethernet ports:
Auto, 10MBps/Duplex, 10MBps/Half, 100Mbps/Duplex, 100MBps/Half
DHCP Timeout on Renewal
5
parameter causes the
147