Cisco SPA112 Administration Guide

Configuring the Network
Basic Setup
Cisco SPA100Series Administration Guide 30
3
IP Reservation: Click the Show DHCP Reservation button to view and
manage the DHCP client list. Click the Hide DHCP
Reservation button to hide the list. When the list is
displayed, you can perform the following tasks:
• To reserve a static IP address for a current
DHCP client: Check the box for the client in the
Select Clients from DHCP Tables list. Click Add
Clients. The selected clients are added to the
Clients Already Reserved list. These clients have
static IP addresses that do not change.
• To add a client that is not in the Select Clients
from DHCP Tables list: Type a name for the
client in the Enter Client Name box. Enter an IP
address for this client in the Assign IP Address
box. Enter the MAC address in the following
format: 00:00:00:00:00:00. Click Add.
• To remove a client from the Clients Already
Reserved list: Check the box for the client. Click
Remove.
Default Gateway Enter the IP address of the default gateway to be used
by the DHCP clients.
Default setting: 192.168.15.1 (the IP address of the
ETHERNET (LAN) interface)
Starting IP Address Enter the first address in the range of addresses to be
assigned dynamically by the DHCP server.
Default setting: 192.168.15.100
Maximum DHCP
Users
Enter the maximum number of devices that can
dynamically receive, or “lease,” DHCP addresses from
the DHCP server.
Default setting: 50
IMPORTANT: Typically, the ATA can support up to five
connected computers for business-related tasks such
as web browsing and viewing email. The ATA is not
designed to support streaming music, video, games, or
other network traffic-intensive tasks.
Field Description

Cisco SPA112 Specifications

General

Supported network protocols	IPv4, IPv6, ARP, DNS, SRV, DHCP, PPPoE, ICMP, TCP, UDP, RTP, RTCP, SNTP
DHCP client	Yes
VPN support	802.1p
Security algorithms	SSL/TLS
Authentication method	SIP
Modem (RJ-11) ports	2
Ethernet LAN (RJ-45) ports	1
Voice codecs	G.711, G.726, G.729
Certification	FCC, CE, ICES, A-Tick, RoHS, UL
Fax compatibility	T.38
Output current	2 A
Output voltage	5 V
AC input voltage	100-240 V
AC input frequency	50 - 60 Hz
Storage temperature (T-T)	-25 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Width	101 mm
Height	28 mm
Weight	153 g