
Connecting Microsoft Lync 2013 to a SIP Trunk
AudioCodes Mediant E-SBC 36 Document #: LTRT-54004
4.1 Step 1: Configuring the E-SBC's Network Interfaces
The subsections below show how to configure the E-SBC's network interfaces. Several
methods can be used. The scenario exemplified in this document uses this method:
The E-SBC interfaces are between the Lync servers located on the LAN and the SIP
Trunk located on the WAN.
The E-SBC connects to the WAN through a DMZ network.
The type of physical LAN connection depends on the method used to connect to the
enterprise's network. In this example, the E-SBC connects to the LAN and WAN using
dedicated LAN ports (i.e., two ports and network cables).
In addition, the E-SBC uses two logical network interfaces; one to the LAN (VLAN ID 1)
and one to the WAN (VLAN ID 2).
Figure 4-1: Network Interfaces
Management
Station (OAMP)
Edge Router /
Firewall
ITSP
LAN
WAN
DMZ
195.189.192.155
10.15.45.101
LAN Port LAN Port
195.189.192.129
10.15.0.1
Vlan ID 1
Vlan ID 2
MS Lync Server
10.15.21.11
DC+DNS+Certificate Server
10.15.21.10
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