AudioCodes MediaPack MP-201B, User Manual, Page: 233 / 270

Version 3.0.1 233 July 2010
MP-20x Telephone Adapter 14. Advanced Settings
14.7.2 DHCP Relay Parameters
Your MP-20x can act as a DHCP relay in case you would like to dynamically assign IP
addresses from a DHCP server other than your MP-20x's DHCP server. Note that when
selecting this option you must also change MP-20x's WAN to work in routing mode.
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To configure a device as a DHCP relay, perform the following steps:
1. In the 'IP Address Distribution' screen, click the Edit icon corresponding to the entry
that you want to edit; the DHCP Server settings for this device are displayed.
2. From the 'IP Address Distribution' drop-down list, select the 'DHCP Relay' option; the
'DHCP Settings' screen appears.
Figure 14-28: DHCP Settings
3. Click the New IP Address link; the screen 'DHCP Relay Server Address' screen
appears.
Figure 14-29: DHCP Relay Server Address Screen
4. In the 'IP Address' field, enter the IP address of the DHCP server.
5. Click OK to save your changes.
6. Click OK once more in the 'DHCP Settings' screen.
7. Change MP-20x's WAN to work in routing mode:
a. On the sidebar menu, click the Network Connections menu; the screen
'Network Connections' opens.
b. Click the link 'WAN Ethernet'; the 'WAN Ethernet Properties' screen opens.
c. Click the button Settings ; the screen 'Configure WAN Ethernet' opens.
d. In the screen section 'Routing', select 'Advanced' from the drop-down list; the
screen refreshes.
e. In the 'Routing Mode' drop-down list, select 'Route'; this changes MP-20x's WAN
to work in routing mode, which is necessary in order for DHCP relaying to
function correctly.
f. Click OK to save the settings.