14User Manual ENGLISHEAP/OWL-Series Wave 2 Enterprise Access PointCopyright © 2017, 4ipnet, Inc. All rights reserved. All other trademarks mentioned are the property of their respective owners.3.2 Network InterfaceOn this page, the network settings of the device can be configured; fields with a red asterisk (i.e. IPAddress, Netmask, Default Gateway, and Primary DNS Server) are mandatory.Mode – Static: The administrator can manually set up the static LAN IP address. All required fields aremarked with a red asterisk.- IP Address: The IP address of the LAN port.- Netmask: The Subnet mask of the LAN port.- Default Gateway: The Gateway IP address of the LAN port.- Primary DNS Server: The IP address of the primary DNS (Domain Name System) server.- Alternate DNS Server: The IP address of the substitute DNS server.Mode – DHCP: This configuration type is applicable when the system is connected to a network with thepresence of a DHCP server; all related IP information required will be provided by the DHCP serverautomatically.Ethernet IGMP Snooping: When Enabled, the switch forwards traffic IGMP packets are transferred via theAccess Point’s network interface and the IP multicast host. Registration information is recorded andsorted into multicast groups. The internal switch forwards traffic only to those ports that requestmulticast traffic. Adversely, without IGMP snooping, multicast traffic is treated like broadcast traffic, withpackets forwarded to all ports causing network inefficiencies.Layer 2 STP: If the AP is set up to bridge other network components, this option can be enabled toprevent undesired loops because a broadcasting storm may occur in a multi-switch environment wherebroadcast packets are forwarded in an endless loop between switches. Moreover, a broadcast storm mayconsume most of the available system resources in addition to available bandwidth. Thus, enabling theLayer 2 STP can lower such undesired occurrence and derive the best available data path for networkcommunication. The AP also supports RSTP Operation. Configurable parameters include Bridge Priority,Hello Time, Max Age, and Forward Delay. Please refer to IEEE standards for recommended parametervalues.