AudioCodes Mediant 500 E-SBC, User Manual

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User's Manual 40. Automatic Update Mechanism
Version 6.8 583 Mediant 500 E-SBC
40 Automatic Update Mechanism
This chapter describes the device's Automatic Updated mechanism.
40.1 Automatic Configuration Methods
The table below summarizes the automatic provisioning methods supported by the device:
Automatic Provisioning Methods
BootP / TFTP DHCP Automatic Update Methods SNMP
(EMS)
67 66 HTTP/S TFTP FTP NFS
No Yes Yes Yes Yes Yes No Yes
40.1.1 DHCP-based Provisioning
A third-party DHCP server can be configured to automatically provide each device, actig as
a DHCP client, with a temporary IP address so that individual MAC addresses are not
required. The DHCP server can provide additional networking parameters such as subnet
mask, default gateway, primary and secondary DNS server, and two SIP server addresses.
These network parameters have a time limit, after which the device must 'renew' its lease
from the DHCP server.
The device can use a host name in the DHCP request. The host name is set to acl_nnnnn,
where
nnnnn denotes the device's serial number. The serial number is the last six digits of
the MAC address converted to decimal representation. In networks that support this feature
and if the DHCP server registers this host name to a DNS server, you can access the
device (through a Web browser) using the URL, http://acl_<serial number> (instead of
using the device's IP address). For example, if the device's MAC address is 00908f010280,
the DNS name is acl_66176.
Notes:
•
When using DHCP to acquire an IP address, the Interface table, VLANs and other
advanced configuration options are disabled.
•
For additional DHCP parameters, see DHCP Parameters.

To enable the device as a DHCP client:
1. Open the Application Settings page ( Configuration tab > System menu >
Application Settings ).
Figure 40-1: Enabling DHCP - Application Settings Page
2. From the 'Enable DHCP" drop-down list, select Enable .
3. Click Submit .
4. To activate the DHCP process, reset the device.
The following shows an example of a configuration file for a Linux DHCP server
(dhcpd.conf). The devices are allocated temporary IP addresses in the range 10.31.4.53 to