3Com VCX V7000 Installation Manual page 398

396 A B: A
PPENDIX UTOMATED
option ntp-servers 10.10.2.50, 10.10.2.6;
vendor-option-space vendor-spec-option;
option tftp-server-name "10.10.2.40";
option vendor-spec-option.snmp-trap-dest "10.10.2.20";
range 10.10.21.4;
}
B O I
RANCH FFICE NSTALLATION
Sample DHCP Configuration File (continued)
The previous line defines the IP addresses of Network Time Protocol
servers that the branch office VCX server can use to obtain accurate
time-of-day information. 3Com recommends that you specify at least two
NTP server addresses and one of them should be another VCX server in
your system. In this sample file 10.10.2.50 is the IP address of an NTP
server located in the regional office and 10.10.2.6 is the IP address of the
Call Processing Server in the same regional office.
CHANGE FOR EACH BRANCH: Change these IP addresses only if you
want a branch office PSTN gateway to use different NTP servers than
other branch office VCX servers use.
CAUTION: If VCX systems are not synchronized via NTP, timing-related
problems can occur.
The previous two lines define the IP address of the Trivial File Transfer
Protocol (TFTP) server. Configuration files for the VCX server and the PSTN
Gateway are located on the TFTP server.
The previous line defines the IP address of the network management
stations to which SNMP (System Network Management Protocol) trap
messages should be sent. This line can contain multiple comma-separated
IP addresses if you want to specify more than one network management
station.
CHANGE FOR EACH BRANCH: Change this IP address only if you want
to manage some branch office PSTN gateways from one management
station and other PSTN gateways from one or more different
management stations.
The previous line defines the range of IP addresses that can be allocated
to the branch office PSTN Gateway. A range statement can contain both
a lower and an upper IP address. If you want, you can define only the
lower IP address, as in the sample.
CHANGE FOR EACH BRANCH: Change this IP address to match the
network parameters of the branch office.