Multitech RF500S Especificaciones

Living with a SOHO Network 2002 edition Tom Schmidt Schmidt Consulting Revised 1/14/2002 [email protected] http://www.tschmidt.com

6 between Tip and Ring of the line in the phone. The ‘half’ ringer is just the capacitor part of the ringer. The half ringer is actually a capacitor

7 vendors must install much new equipment. One or more TV channels are reserved for data services; this accommodates the downstream path to the users

8 3 Dialup Account – The Old Standby Even though we have DSL we chose to maintain a dialup account. It is used as a backup incase DSL fails and whil

9 Windows performance Tip - in dial up networking uncheck "Log on to Network." Most ISP use RADIUS authentication, eliminating Windows netw

10 Next we tried Vitts. According to Vitts we were only 10.5K feet from the CO. As others have found out DSL prequalification distance estimates are

11 Disadvantage of Splitter Installation required Dedicated run from splitter to DSL modem Have to purchase separately 4.4 Installation The

12 The other useful tweak affects the maximum chunk of data that can be transmitted; this is called the maximum transmission unit (MTU). In an Ethern

13 5 Wiring Techniques – The Nuts & Bolts Many of the advances in termination technology were developed by the Telephone industry to deal with

14 (100Mbp/s), and Gigabit Ethernet (1000Mbp/s). When Gigabit Ethernet was being developed it was designed to operate over the installed base of Cat5

15 5.3 Patch Cables Patch cables connect computer to wall jack, and the patch panel to a hub or switch. Patch cables are available in different leng

ii Table of Contents 1 OVERVIEW ...

16 Figure 11 Telephone RJxx Jacks A third common telephone jack is RJ31X used with alarm circuits. This is an 8-position connector. The jack is pla

17 5.7 Type 110 Terminals Type 110 terminals allow wiring to be packed more densely then Type 66. The smaller terminal causes less disruption to hig

18 Figure 17 Telephone wiring closet 6 Telephone – Connection to the World We have three phone lines. Two lines are for family use and the third

19 6.1 Network Interface Device Back in the bad old days when the phone company rented you a phone and did inside wiring they made no provision to i

20 6.3 POTS/DSL Splitter Rather then using the microfilters at each non DSL device I installed a POTS/DSL splitter. When the business line exits t

21 6.5 Putting it all together The drawing below shows the overall connection of phone and DSL wiring. Two phone lines are used for personal use and

22 7 LAN -- The Networked Home The Local Area Network (LAN) allows computers to be used anywhere in the house. Each computer has access to shared re

23 7.1.2 10Mbps - 100Mbps - 1Gbps - 10Gbps Initially UTP Ethernet operated at 10 million bits per second (10Mbp/s). Fast Ethernet increased speed to

24 Ethernet Tip – Use 10/100 autosensing hub or switch. This allows a mix of 10 and 100Mbp/s computers. Internally the hub combines all low-speed po

25 an Access Point to bridge the wireless network to the LAN. Depending on the type of building a single site may need more then one Access Point.

iii 7.2.1 PhoneLine Networking ...24 7.2.2 R

26 The current version of IP is version 4. Each node is assigned a 32-bit address, so the maximum population of the Internet is 4 billion devices. Th

27 We will refer to the first block as "24-bit block", the second as "20-bit block", and to the third as "16-bit" bloc

28 7.5 Gateway Ethernet is a local network. This means each device is in direct communication with all other devices. When a device needs to discov

29 7.8 Network Neighborhood – My Network Places Windows network neighborhood allows one to browse local computers. To show up in the neighborhood ea

30 Rather then terminating building cables at a patch panel they were directly terminated with CAT5 plugs. Terminating plugs is somewhat harder then

31 The router we chose was a MultiTech RF500S. It meets our requirements and technical support from Multitech has been outstanding. 8.1 WAN Interfa

32 8.2.1 Using multiple ISPs The fallback feature is great but it adds some complexity in setting up the network. Each provider issues a different I

33 8.3.3 Static It is also possible to manually assign the IP address. The Multitech DHCP server is configured to issue addresses from the 192.168.2

34 8.5 10/100 Ethernet switch The home office is wired with 4 Ethernet drops feed by the whole house 10/100 hub. This turned out to be inadequate s

35 VPN’s extend the trust environment to the employees PC. If this computer is compromised so is the corporate LAN. Employees and family members ne

iv 12 FAX – E-MAIL ON PAPER ...41 13 USENET

36 Example 2: Ping remote host by DNS Name. Pinging dslreports.com [209.123.109.175] with 32 bytes of data: Reply from 209.123.109.175: bytes=32 ti

37 9.3 NET NET is a Windows command line utility to display information about Windows networking and workgroup NET CONFIG Displays your current wor

38 9.5 WINIPCFG Windows WINIPCFG utility displays the current configuration for each network adapter. From the start menu open run dialog box. Type

39 11 E-Mail -- Mail at the Speed of Light E-mail accounts fall into three broad categories; ISP account, browser based free mail and accounts on you

40 11.4.1 Block Outgoing Port 25 SMTP uses TCP port 25. Some ISP’s block this port at the edge of their network. This effectively prevents customers

41 Mail Configuration Tip -- Archiving mail when using multiple clients is difficult. One trick I’ve found useful is to have your main computer remo

42 14 Multimedia – Sound and Images from Around the World Using the Internet to deliver audio and video is hampered by the limited speed available u

43 Configuration Tip -- The print server does not have a name, it must be accessed by IP address. This is inconvenient if the address keeps changing

44 local server’s Real Time Clock (RTC). Tardis includes a Network Time Protocol (NTP) timeserver that periodically broadcasts time info over the LAN

45 18 KVM -- So Many Computers So Little Space We did not want to use another set of user I/O when we setup the server. The solution was to use a KV

1 1 Overview In mid 1998 I set up a home LAN. I was starting a consulting business and wanted to learn more about the issues involved in building an

46 Security Tip -- Password protect network shares. Some viruses are able to search the network and do damage to shares. This will not protect sha

47 20.3 Software Security Patches Microsoft provides a convenient way to install the latest security patches with Windows Update. As with anti virus

48 Don’t advertise what you have. The more the attacker knows about your installation the easier it is to find a weakness. All systems have weaknes

49 22 Web Hosting -- Your Presence on the Web Every business needs at least a minimal web presence. The easiest way to set up a site is to use a host

50 23.2 WHOIS record for Tschmidt.com Information for each registered domain is maintained in the WHOIS database. Below is the WHOIS record for the

51 23.4 Site Logs The hosting service typically provides a log of everyone that visits your site and what pages they looked at. This data can be an

52 25 Conclusions Setting up a SOHO network and VPN has been an extremely successful and a rewarding experience. The network meets our business and p

53 Last Page Intentionally Blank

2 Figure 1 SOHO data and voice block diagram

3 2 Types of Internet Access – Your Friendly ISP The PC has progressed from hobbyist plaything to an indispensable telecommunication device. Almost

4 at the user and CO side use frequencies above those used for voice telephony to deliver high-speed data. Several types of DSL have been developed

5 be the shortest distance between the CO and subscriber. Some ILECs are installing remote Terminals (RT) to reduce cable distance allowing them to s