A CCESS GATEWAYSystem Administration 151Relogin within ZoneThis selection provides the option to require relogin after migration between ports that arewithin a given zone. The default is Disabled.Existing ZonesZones that have already been defined are listed here, and can be edited or deleted. (Note: Thedescription field is not displayed in the list view).Defining IPSec Tunnel SettingsThere are many different ways to configure, manage and monitor the performance and up-timeof network devices. SNMP, Telnet, HTTP and ICMP are all common protocols to accomplishnetwork management objectives. And within those objectives is the requirement to provide thehighest level of security possible.While several network protocols have evolved that offer some level of security and dataencryption, the preferred method for attaining maximum security across all network devices isto establish an IPSec tunnel between the NOC (Network Operations Center) and the edgedevice (early VPN protocols such as PPTP have been widely discredited as a secure tunnelingmethod).As part of Nomadix’ commitment to provide outstanding carrier-class network managementcapabilities to its family of public access gateways, we offer secure management through theNSE’s standards-driven, peer-to-peer IPSec tunneling with strong data encryption.Establishing the IPSec tunnel not only allows for the secure management of the Nomadixgateway using any preferred management protocol, but also the secure management of thirdparty devices (for example, WLAN Access Points and 802.3 switches) on private subnets onthe subscriber side of the Nomadix gateway.The advantage of using IPSec is that all types of management traffic are supported, includingthe following typical examples: ICMP - PING from NOC to edge devices Telnet - Telnet from NOC to edge devices Web Management - HTTP access from NOC to edge devices SNMP SNMP GET from NOC to subscriber-side device (for example, AP) SNMP SET from NOC to subscriber-side device (for example, AP) SNMP Trap from subscriber-side device (for example, AP) to NOC
