Specifications

Network Requirements and Preparation
Planning and Installation Guide 9 – 15
received, it reverts to the previous IP address. If there is no previous IP address, the
voice switch continues trying to get an IP address.
If you use a DHCP server on the network, ShoreTel recommends that you configure
static IP addresses such that the IP addresses of the voice switches do not inadvertently
change.
If you do not have a DHCP server on the network, you can use the BOOTP server
integrated into ShoreWare Director to assign IP addresses. ShoreTel does not support
running DHCP on the ShoreWare server for serving either ShoreGear voice switches or
other equipment.
Additionally, the ShoreGear-120/24, ShoreGear-60/12, ShoreGear-40/8, ShoreGear-T1,
and ShoreGear-E1 have a maintenance port for the purposes of configuring the
networking parameters.
The following recommendations will assist you with IP address assignment:
• Ensure there is only one DHCP server on the network. If you have multiple DHCP
servers on the network, you risk giving the voice switches an errant IP address
that will remove the voice switches from service until the problem is corrected.
• The ShoreTel 6.1 system must be on a private network in some situations and on a
public network in other instances. For example, if the enterprise is using a firewall
with Network Address Translation (NAT), all remote facilities must establish VPN
connections to the headquarters and be on the same private network. If the
enterprise is not using NAT but is using firewalls, all remote locations must use
public IP addresses.
• Each IP telephone must be configured with a single unique IP address. You can
configure the IP telephone through DHCP or manually on the telephone.
• Telephones at different sites must be configured on different subnets or assigned
from different address ranges so that the ShoreTel 6.1 system can properly assign
the voice switch for the IP telephone site.