Cisco Cisco Aironet 1200 Access Point Notas de publicación
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Introduction
OL-3641-01
Introduction
Introduction
Cisco Aironet Access Points are wireless LAN transceivers that can act as the connection point between
wireless and wired networks or as the center point of a standalone wireless network. In large
installations, the roaming functionality provided by multiple access points enables wireless users to
move freely throughout the facility while maintaining uninterrupted access to the network.
wireless and wired networks or as the center point of a standalone wireless network. In large
installations, the roaming functionality provided by multiple access points enables wireless users to
move freely throughout the facility while maintaining uninterrupted access to the network.
Your 1200 series access point can contain two radios: a 2.4-GHz radio in an internal mini-PCI slot and
a 5-GHz radio module in an external, modified cardbus slot. The access point supports one radio of each
type, but it does not support two 2.4-GHz or two 5-GHz radios. You can configure the radios separately,
using different settings on each radio.
a 5-GHz radio module in an external, modified cardbus slot. The access point supports one radio of each
type, but it does not support two 2.4-GHz or two 5-GHz radios. You can configure the radios separately,
using different settings on each radio.
The access point uses a browser-based management system, but you can also configure the access point
using a terminal emulator, a Telnet session, or Simple Network Management Protocol (SNMP).
using a terminal emulator, a Telnet session, or Simple Network Management Protocol (SNMP).
New Features
Firmware version 12.01T includes the following new software feature:
•
Proxy Mobile IP Support
Proxy Mobile IP works in conjunction with the Mobile IP feature on Cisco devices on the wired network.
When you enable proxy Mobile IP on your access point and on your wired network, the access point
helps client devices from other networks remain connected to their home networks. The visiting client
devices do not need special software; the access point provides proxy Mobile IP services on their behalf.
Any wireless client can participate.
When you enable proxy Mobile IP on your access point and on your wired network, the access point
helps client devices from other networks remain connected to their home networks. The visiting client
devices do not need special software; the access point provides proxy Mobile IP services on their behalf.
Any wireless client can participate.
Mobile IP provides users the freedom to roam beyond their home subnets while maintaining their home
IP addresses. This enables transparent routing of IP datagrams to mobile users during their movement,
so that data sessions can be initiated to them while they roam. For example, a client device with an IP
address of 192.95.5.2 could associate to an access point on a network whose IP addresses are in the
209.165.200.x range. The guest client device keeps its 192.95.5.2 IP address, and the access point
forwards its packets through a Mobile IP enabled router across the Internet to a router on the client’s
home network.
IP addresses. This enables transparent routing of IP datagrams to mobile users during their movement,
so that data sessions can be initiated to them while they roam. For example, a client device with an IP
address of 192.95.5.2 could associate to an access point on a network whose IP addresses are in the
209.165.200.x range. The guest client device keeps its 192.95.5.2 IP address, and the access point
forwards its packets through a Mobile IP enabled router across the Internet to a router on the client’s
home network.
Access points with proxy Mobile IP enabled attempt to provide proxy service for any client device that
associates and does not perform the following:
associates and does not perform the following:
•
Issue a DHCP request to get a new IP address.
•
Support a Mobile IP stack. If a device supports a Mobile IP stack, the access point assumes that the
device will perform its own Mobile IP functions.
device will perform its own Mobile IP functions.
You enable proxy Mobile IP for specific SSIDs on the access point, providing support only for clients
who use those SSIDs. Proxy mobile IP does not support VLANs.
who use those SSIDs. Proxy mobile IP does not support VLANs.
Proxy mobile IP is disabled by default.
Note
Guest client devices do not receive broadcast and multicast packets.