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LANCOM L-322agn
WLAN
Background scanning
Client detection
802.1x supplicant
Layer- 3 Tunneling
*) Note
IEEE 802.11n Features
MIMO
40 MHz Channels
MAC Aggregation and Block
Acknowledgement
Short Guard Interval
BFWA*
*) Note
WLAN operating modes
WLAN access point
WLAN bridge
WLAN router
WLAN client
Firewall
Stateful inspection firewall
Packet filter
Extended port forwarding
N:N IP address mapping
Tagging
Actions
Notification
Quality of Service
Traffic shaping
Bandwidth reservation
DiffServ/TOS
Packet- size control
Layer 2/Layer 3 tagging
Detection of rogue AP's and the channel information for all WLAN channels during normal AP operation.
The Background Scan Time Interval defines the time slots in which an AP or Router searches for a foreign WLAN network in its
vicinity. The time interval can be specified in either milliseconds, seconds, minutes, hours or days
Rogue WLAN client detection based on probe requests
Authentication of an access point in WLAN client mode at another access point via 802.1x (EAP- TLS, EAP- TTLS and PEAP)
Layer- 3 Tunneling in conformity with the CAPWAP standard allows the bridging of WLANs per SSID to a separate IP subnet.
Layer- 2 packets are encapsulated in Layer- 3 tunnels and transported to a LANCOM WLAN controller. By doing this the access
point is independent of the present infrastructure of the network. Possible applications are roaming without changing the IP
address and compounding SSIDs without using VLANs.
The effective distances and transmission rates that can be achieved are depending of the site RF conditions
MIMO technology is a technique which uses multiple transmitters to deliver multiple data streams via different spatial channels.
Depending on the existing RF conditions the throughput is doubled with MIMO technology
Two adjacent 20 MHz channels are combined to create a single 40 MHz channel. Depending on the existing RF Conditions
channel bonding doubles the throughput.
MAC Aggregation increase the 802.11 MAC efficiency by combining MAC data frames and sending it out with a single header.
The receiver acknowledges the combined MAC frame with a Block Acknowledgement. Depending on existing RF conditions, this
technique improves throughput by up to 20%.
The guard interval is the time between OFDM symbols in the air. 802.11n gives the option for a shorter 400 nsec guard interval
compared to the legacy 800 nsec guard interval. Under ideal RF conditions this increases the throughput by upto 10%
Support for Broadband Fixed Wireless Access in 5.8 GHz band with up to 4 Watt EIRP for WLAN point- to- point links according
to the national regulations of your country, special antennas required
The use of BFWA is subject to country specific regulation
Infrastructure mode (autonomous operation or managed by LANCOM WLAN Controller)
Point- to- multipoint connection of up to 7 Ethernet LANs (mixed operation optional), broken link detection, blind mode, supports
VLAN
When configuring Pt- to- Pt links, pre- configured names can be used as an alternative to MAC Adresses for creating a link. Rapid
spanning- tree protocol to support redundant routes in Ethernet networks
Use of the LAN connector for simultaneous DSL over LAN, IP router, NAT/Reverse NAT (IP masquerading) DHCP server, DHCP
client, DHCP relay server, DNS server, PPPoE client (incl.Multi- PPPoE), PPTP client and server, NetBIOS proxy, DynDNS client,
NTP, port mapping, policy- based routing based on routing tags, tagging based on firewall rules, dynamic routing with RIPv2,
VRRP
Transparent WLAN client mode for wireless Ethernet extensions, e.g. connecting PCs or printers by Ethernet; up to 64 MAC
addresses. Automatic selection of a WLAN profile (max. 8) with individual access parameters depending on signal strength or
priority
Incoming/Outgoing Traffic inspection based on connection information. Trigger for firewall rules depending on backup status,
e.g. simplified rule sets for low- bandwidth backup lines. Limitation of the number of sessions per remote site (ID)
Check based on the header information of an IP packet (IP or MAC source/destination addresses; source/destination ports,
DiffServ attribute); remote- site dependant, direction dependant, bandwidth dependant
Network Address Translation (NAT) based on protocol and WAN address, i.e. to make internal webservers accessible from WAN
N:N IP address mapping for translation of IP addresses or entire networks
The firewall marks packets with routing tags, e.g. for policy- based routing
Forward, drop, reject, block sender address, close destination port, disconnect
Via e- mail, SYSLOG or SNMP trap
Dynamic bandwidth management with IP traffic shaping
Dynamic reservation of minimum and maximum bandwidths, totally or connection based, separate settings for send and receive
directions. Setting relative bandwidth limits for QoS in percent
Priority queuing of packets based on DiffServ/TOS fields
Automatic packet- size control by fragmentation or Path Maximum Transmission Unit (PMTU) adjustment
Automatic or fixed translation of layer- 2 priority information (802.11p- marked Ethernet frames) to layer- 3 DiffServ attributes in
routing mode. Translation from layer 3 to layer 2 with automatic recognition of 802.1p- support in the destination device
Scope of features: as of LCOS version 8.5x
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