Dell PowerConnect W Clearpass 100 Software Betriebsanweisung Seite 97

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You can use PPPoE for your uplink connectivity in both OAW-IAP and IAP-VPN deployments. PPPoE is supported
only in a single AP deployment.
Uplink redundancy with the PPPoE link is not supported.
When the Ethernet link is up, it is used as a PPPoE or DHCP uplink. Once the PPPoE settings are configured,
PPPoE has the highest priority for the uplink. The OAW-IAP can establish a PPPoE session with a PPPoE server at
the ISP and get authenticated using Password Authentication Protocol (PAP) or the Challenge Handshake
Authentication Protocol (CHAP). Depending upon the request from the PPPoE server, either the PAP or the CHAP
credentials are used for authentication. After you configure PPPoE, reboot the OAW-IAP for the configuration to
affect. The PPPoE connection is dialed after the AP comes up. The PPPoE configuration is checked during OAW-
IAP boot and if the configuration is not incorrect, Ethernet is used for the uplink connection.
When PPPoE is used, do not configure Dynamic RADIUS Proxy and IP address of the Virtual Controller.
An SSID created with default VLAN is not supported with PPPoE uplink.
You can also configure an alternate Ethernet uplink to enable uplink failover when an Ethernet port fails.
3G/4G Uplink
AOS-W Instant supports the use of 3G/4G USB modems to provide the Internet backhaul to an AOS-W Instant
network. The 3G/4G USB modems can be used to extend client connectivity to places where an Ethernet uplink
cannot be configured. This enables the RAPs to automatically choose the available network in a specific region.
The 3G and 4G LTE USB modems can be provisioned on OAW-RAP3WN/3WNP, OAW-RAP108, and
OAW-RAP155/155P.
Types of Modems
AOS-W Instant supports the following three types of 3G modems:
l True Auto Detect Modems of this type can be used only in one country and for a specific ISP. The parameters
are configured automatically and hence no configuration is necessary.
l Auto-detect + ISP/country Modems of this type require the user to specify the Country and ISP. The same
modem is used for different ISPs with different parameters configured for each of them.
l No Auto-detect Modems of this type are used only if they share the same Device-ID, Country, and ISP details.
You need to configure different parameters for each of them. These modems work with AOS-W Instant when the
appropriate parameters are configured. All the new auto-detected modems falls under this category as the
parameters necessary to automatically configure them are unknown.
The following table lists the types of supported 3G modems:
Modem Type Supported 3G Modems
True Auto Detect l USBConnect 881 (Sierra 881U)
l Quicksilver (Globetrotter ICON 322)
l UM100C (UTstarcom)
l Icon 452
l Aircard 250U (Sierra)
l USB 598 (Sierra)
l U300 (Franklin wireless)
Table 15:
List of Supported 3G Modems
AOS-W Instant 6.2.1.0-3.3| User Guide Uplink Configuration | 97
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