Provisioning The Device Using Dhcp Option 160 - AudioCodes Mediant 4000 SBC User Manual

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
10.31.4.75. TFTP is assumed to be on the same computer as the DHCP server
(alternatively, the "next-server" directive may be used).
ddns-update-style ad-hoc;
default-lease-time 60;
max-lease-time 60;
class "gateways" {
match if(substring(hardware, 1, 3) = 00:90:8f);
}
subnet 10.31.0.0 netmask 255.255.0.0 {
pool {
}
}
Note:
•
If the DHCP server denies the use of the device's current IP address and specifies
a different IP address (according to RFC 1541), the device must change its
networking parameters. If this occurs while calls are in progress, they are not
automatically rerouted to the new network address. Therefore, administrators are
advised to configure DHCP servers to allow renewal of IP addresses.
•
If the device's network cable is disconnected and then reconnected, a DHCP
renewal is performed (to verify that the device is still connected to the same
network). The device also includes its product name in the DHCP Option 60
Vendor Class Identifier. The DHCP server can use this product name to assign an
IP address accordingly.
•
After power-up, the device performs two distinct DHCP sequences. Only in the
second sequence is DHCP Option 60 included. If the device is software reset
(e.g., from the Web interface or SNMP), only a single DHCP sequence containing
Option 60 is sent.

41.1.1.1 Provisioning the Device using DHCP Option 160

You can provision the device using DHCP Option 160. DHCP Option 160 provides the
device with the URL address of the provisioning server from where it can download its
software (.cmp) and configuration (.ini) files. The URL can also include the names of the
required files to download and their folder location on the server.
If you enable DHCP client functionality with DHCP Option 160, upon a device reset or
power up, the device (as a DHCP client) sends a DHCP request to the DHCP server to
obtain networking information (e.g., the device's IP address) and the URL address of the
provisioning server.

The following syntax is supported for defining the URL and configuration/firmware
filenames in DHCP Option 160 (on the DHCP server):

<protocol>://<server IP address or hostname>

<protocol>://<server IP address or hostname>/<software filename>

<protocol>://<server IP address or hostname>/;<configuration filename>

<protocol>://<server IP address or hostname>/<software filename>;<configuration
filename>
User's Manual
allow members of "audiocodes";
range 10.31.4.53 10.31.4.75;
filename "SIP_F6.60A.217.003.cmp –fb;device.ini";
option routers
option subnet-mask
10.31.0.1;
255.255.0.0;
662
Mediant 4000 SBC
Document #: LTRT-40203