183.6.3 Configure Network InterfacesThe network interfaces defined as part of the initial, basic setup include the WAN, LAN,Dynamic Host Configuration Protocol (DHCP), and the Local Gateway (LGW) mode.3.6.3.1 WAN/LANGo to the Network > WAN/LAN menu (Figure 3–14). The WAN interface is an externalcommunication portal (Internet connection) between the eNB’s Network ManagementSystem (NMS) – in most cases, the CloudCore OMC - and the Mobility Management Entity(MME). If not using CloudCore, the eNB’s NMS may be a Local OMC or the LTE NMS. All of theInternet / WAN fields are described in Table 3-1: Internet/WAN.If the the Connect Via field is set to DHCP and the LGW function is enabled (section 3.6.3.2),the Connect Type field must be modified. The IP address of the eNB will be changed due to theMAC address being changed. Therefore, modify the router server at the same time.The Local Network / LAN interface is used only as a local maintenance port during initial eNBsetup and basic configuration; it is not used during normal eNB operation. Enter the IP addressand subnet mask address for the local network connection. The default IP address for the LANinterface is 192.168.150.1.NOTE: If the LAN IP address is changed, the eNB will reboot and you will have to login to the GUI again.Figure 3–14: WAN/LAN