LAN www ohyunit co kr LAN Network Hub

무선LAN 일반사항 www. ohyunit. co. kr

무선 LAN 이란? - Network 구축시 Hub에서 Client까지 유선 대신 전파(RF)나 빛 등을 이용 하여 네트워크를 구축하는 방식. - 무선 LAN전송방식 : 도달거리, 성능, 보안성 등을 고려하여 ISM Band를 이용하는 Spread Spectrum 방식의 무선LAN이 가장 보편화 되어 있음. - ISM(Industrial, Scientific, Medical) Band. 902 - 928 Mhz(26 Mhz Bandwidth). 2. 4 - 2. 4835 Ghz(83. 5 Mhz Bandwidth). 5. 725 - 5. 85 Ghz(125 Mhz Bandwidth) www. ohyunit. co. kr

Home Network 발전 방향 Household Appliances 2 nd PC, Laptop, Printer Today’s Isolated Home PC Everyday Objects Voice Communications Devices, Pads www. ohyunit. co. kr A/V, CE Equipments

무선랜과 Ethernet 연결 비용 비교 구분 Hardware Wireless Wired ( 100 Node 기 준 ) 21, 300 12, 000 18, 500 9, 000 2, 500 - 300 3, 000 Wiring(one time) 150 8, 000 Total Installation 21, 450 20, 000 214. 5 200 - 12, 000 21, 450 32, 000 - NIC - Access Points - Hubs 1 Node당 금액 Lay-out 변경시 ( 년 2회 ) 2년 사용시 TCO * 뒷 페이지 설명 참조 www. ohyunit. co. kr 비고 단위: 천원 유 선 : 90 * 100 무 선 : 185 * 100 500 * 5 유선: 무선: 300 * 10 300 * 1 80 * 100 30 * 5 1 Node 당 60

Magic. LAN 개요 및 특징 www. ohyunit. co. kr

ROAMING AN L ed r i W Server k r o netw CELL C CELL B CELL A Roaming www. ohyunit. co. kr

보안성 - Spread Spectrum Communication. 기본적으로 도청이 불가능한 통신 방식 - ESS ID(Extended Service Set). 독립적인 무선 Network Group 지정. 영문자 or 숫자로 30개까지 가능 - WEP(Wired Equivalent Privacy). Access Point와 무선랜 카드가 동일한 64, 128 Bits Key로 암호화될 때만 통신 가능 www. ohyunit. co. kr

ESS ID : AP 1 ESS ID : AP 2 동일 ESS ID 사용자 ESS ID가 다른 사용자 동일 ESS ID 사용자 www. ohyunit. co. kr

WEP(Wired Equivalent Privacy) AP(Access Point) AP와 WEP Key가 동일한 무선랜 단말만 통신 가능 64, 128 bits 지원 동일한 Key 사용자 다른 Key 사용자 www. ohyunit. co. kr

전송거리 ■ 전송거리 Open Space Office Environment 2 Mbps Mode 11 Mbps Mode 350 m 200 m 70 m 30 m * 사용환경에 따라 전송거리가 변할 수 있습니다. www. ohyunit. co. kr

Magic. LAN 제품구성 www. ohyunit. co. kr

SWL - 2000 N - PCMCIA Type 무선 LAN Card 사용주파수 : 2. 4 - 2. 48 GHz 전송 Speed : 1, 2, 5. 5, 11 Mbps 지원 Channel 수 : 13개 IEEE 802. 11 b Standard 채택 Card & Antenna 일체형 Driver Software 및 Installation S/W 포함 Access Protocol : CSMA / CA Bit Error Rate : Better Than 10 -8 Size : 5. 3 x 10. 5 x 0. 6 cm 저소비전력 안테나 내장 부문 PCMCIA Card www. ohyunit. co. kr

SWL – 2000 P - PCI Type 무선 LAN Card 사용주파수 : 2. 4 - 2. 48 GHz 전송 Speed : 1, 2, 5. 5, 11 Mbps 지원 Channel 수 : 13개 IEEE 802. 11 b Standard 채택 Omni-Directional Antenna Driver Software 및 Installation S/W 포함 Access Protocol : CSMA / CA Bit Error Rate : Better Than 10 -8 Size : 9. 1 x 14. 7 x 0. 7 cm 저소비전력 www. ohyunit. co. kr PCI Type (Half Size)

SWL - 3000 AP - Access Point 사용주파수 : 2. 4 - 2. 497 GHz 전송 Speed : 1, 2, 5. 5, 11 Mbps 유선연결 : 10/100 Base. T 지원 Channel 수 : 13개 IEEE 802. 11 b Standard 채택 DHCP, NAT Router 기능 WEP 지원(64/128 Bit) LED : 유, 무선 Link 상태, Power On/Off Management S/W www. ohyunit. co. kr Access Point

What is the Access Point Router HUB Internet Access Point Desktop PC User Notebook User www. ohyunit. co. kr

General Descriptions (1) n. Access Point Rear Panel PCMCIA slot 10/100 Base. T(RJ 45) www. ohyunit. co. kr RS-232 C Serial DC IN

General Descriptions (2) § Support IEEE 802. 11 b(CSMA/CA) § Direct Sequence Spread Spectrum - Data Rate: 1, 2, 5. 5, 11 Mbps Auto-Fallback § Support 10/100 Base. T(RJ-45) § 2. 4 GHz 13 Channel Frequency Supports NAT/DHCP Server features § HTTP/Telnet/SNMP/Serial Configuration § Building-to-Building function (PTP) www. ohyunit. co. kr

Management Features • Local Configuration - Serial EIA-232 • Remote Configuration - HTTP, Telnet, SNMP - AP Manager Utility for Win 95/98/2000/NT • Firmware Upgrade - Upgrade via Serial/Ethernet Interface • Automatic Searching AP - Easy to search the AP without knowing its IP address, using AP Manager Utility • SNMP Compliance - MIB I. II and 802. 11 MIB www. ohyunit. co. kr

Other Features (1) § § IP Auto-Configuration - Auto-configuration of the AP IP address, using DHCP client - Auto-configuration of the STA IP address, using DHCP server of the AP - DHCP relay IP Sharing - Support NA/PT (Network Address/Port Translation) - Many stations can access the network with just one IP address. AP administration - Only authorized administrator can view/modify the configuration of AP via HTTP, telnet, Hyperterminal, APmanager Windows AP Manager Utility - Easy to configure the AP - Support the traffic monitor www. ohyunit. co. kr

Other Features (2) § § § Wireless Bridging - Support the Point-To-Point application - The Point-To-Multipoint application will be supported with just software upgrade. Max. Associations - Configuration of the maximum number of stations Access control via the MAC address - AP maintains the Pass/Deny MAC address table - The unauthorized station cannot associate with the AP WEP (Wired Equivalent Encryption) - Support 64 bit, 128 bit WEP key Roaming - Support the seamless roaming www. ohyunit. co. kr

Configuration (Basic) AP list of using the same network segment TCP/IP Configuration Wireless LAN properties IP, MAC, Channel, firmware version Put AP into default setting AP/card status Searching for AP www. ohyunit. co. kr

Configuration (Radio) Operation mode selection, AP or PTP Radio related parameters MAC of pc card in the AP The counterpart AP MAC for bridging www. ohyunit. co. kr

Configuration (Bridge) When a client didn’t use channel for this time, AP removes this user from the table. Port selection 11 types of protocol filter Bridge table information such as port, lifetime and MAC address. www. ohyunit. co. kr

Configuration (Server) Telnet, NMP, NAT, DHCP servers can be enabled or disabled by administrator. Edit IP scope for DHCP, refer to Next page. Default parameters. NAT gateway and subnet mask www. ohyunit. co. kr

Configuration (DHCP IP pool) Support only dynamic allocation Start and End IP address Enable/disable IP scope count www. ohyunit. co. kr

Configuration (Security) Refer to next page Add or delete MAC Dealing Mechanism for station not in the table Move MAC Restrict the number of concurrent users. Save or Load table Support only Open system www. ohyunit. co. kr

Configuration (WEP) Enter String Key Generation Based on string Select the KEY Manually key input through the below input box ★ 64, 128 bits 지원 www. ohyunit. co. kr

Configuration (Firmware Load) AP firmware information Select the location of AP firmware file Choose the local firmware file Download firmware In case of not selecting firmware, file open dialog box will show up www. ohyunit. co. kr

Configuration (Statistics) Select MIB or General Traffic Graph type : line / histogram Set the high level of graph Display area www. ohyunit. co. kr

Operation ( PTP ) HUB Router Internet HUB Wireless bridge WEP Wireless bridge DHCP server can be located www. ohyunit. co. kr AP

Operation ( PTM_AP ) HUB Router Internet Gateway : 166. 79. 32. 1 Public IP for AP : 166. 79. 32. 22 Gateway : 166. 79. 32. 1 Access Point NAT + DHCP + WEP NAT gateway : 172. 16. 0. 1 DHCP client Users Extended private domain Private domain : 172. 16. x. x DNS : public domain IP www. ohyunit. co. kr

Magic. LAN 구성방법 www. ohyunit. co. kr

Infrastructure S/W Hub Server Access Point Notebook 사용자 Access Point PC 사용자 3 F(전산실) Notebook 사용자 2 F www. ohyunit. co. kr Notebook 사용자 PC 사용자 1 F PC 사용자