Motorola VT2142 - Manual (Page 31)

VT2142 Voice Gateway User Guide 21
Overview Installation Troubleshooting Contact FAQ Glossary License
Configuration:
Basic Advanced TCP/IP
Enable DHCP Server
If selected, the DHCP server on the voice gateway assigns IP addresses to the computers
and other hosts on your network, if they have DHCP enabled (see “Configuring TCP/IP” on
page 52). By default, the voice gateway DHCP server is enabled.
If there is another DHCP server running on your network (on another router), you must
disable one of the DHCP servers.
Enable ISP
DNS , SNTP
If Enable DHCP Server is selected, selecting this option causes the systems on the VT2142
LAN to use the domain name system (DNS) on the WAN side. Each system on the LAN is
provided with:
• IP address 192.168.15.x
• Gateway: 192.168.15.1
If Enable IPS DNS,SNTP is selected, the ISP may also transmit other data to the computers
on the VT2142 LAN, including, but not limited to, the time, log, cookie, print, NTP, and WINS
servers.
Start IP
Sets the first IP address assigned by the DHCP server, in dotted-decimal format . It must be
greater than the IP address value of the voice gateway. For example, if the IP address of the
voice gateway is 192.168.15.1 (default), the starting IP address must be 192.168.15.2 (or
higher).
End IP
Sets the final IP address assigned by the DHCP server, in dotted-decimal format. It cannot
exceed the subnet limit of 254. For example, the default is 192.168.15.254. If the DHCP
server runs out of DHCP addresses, users cannot access network resources. If this happens,
increase the End IP (to the limit of 254) or reduce the Lease Time.
If you change Start IP or End IP, be sure they are in the range for specified by the Subnet IP
Address and Netmask. For example, if the voice gateway IP address is 192.168.15.1 (the
default) and you set Start IP and End IP to 192.168.0.2 and 192.168.0.100, respectively,
computers with DHCP enabled cannot communicate with the voice gateway.
Lease Time
Sets the time, in seconds, that a network computer remains connected to the voice gateway
using its current assigned IP address. At the end of this time, the DHCP server renews the
lease or assigns the computer a new IP address. The default is 3600 seconds (1 hour). The
maximum is 999999 seconds (about 278 hours).
Enable DHCP Relay If selected, the voice gateway forwards requests and responses between the computers on
your network (the DHCP clients) and the DHCP server you chose to use for your network.
Relay IP
If you select Enable DHCP Relay, type the IP address of the DHCP server in dotted-decimal
format.
Server and Relay Off
If selected, you must carefully configure the IP address, Subnet Mask, and DNS settings of
every host on your network. Do not assign the same IP address to more than one host. Your
voice gateway must be on the same subnet as the other hosts.
LAN Configuration fields and buttons (continued)
Field or Button Description