hello its me again,as usual nothing's change :),i would like to share some diagram of basic to complex networking...prolly this would be so useful not only for I-cafe's but also useful to other I.T.'s having trouble what to decide and what to do on how to set things up from scratch.anyway,so much for introduction.
WHAT IS THIS GOOD FOR?:-provide an insights and concept to those who have trouble about their network.
WHO WILL MOST LIKELY TO USE THIS?:-basically anyone can use it for reference purpose,and for actual purpose.
WHAT YOU NEED?-time-pc with printer(if you want to print the diagrams)
legends:
smoothwall - firewall,router(think of it as an ordinary hardware router so that you are not going to confuse what im talking about)
RED - lan card use for WAN(wide area networking)GREEN - lan card use for LAN(local are networking)
ORANGE - a 3rd lan card mostly likely use for DMZ(dimilitarize zone,e.g.:secure side for webserver,fileserver,ftp or for AP(Access Point)
BLUE - same function as ORANGE nic,but sometimes can act as 2nd RED nic for dual wan purpose.(applicable for dual WAN or PC router,not available for single hardware routers)
AP - abbr. for Access Point
the basic setup:click on image below to enlarge
*the basic setup - is more likely the usual and the most simpliest form of home networking,also the basic setup of most I-Cafe's.The diagram explains that modem is directly connected to smoothwall(router,firewall);smoothwall to LAN switch or hub then spread it to workstations
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click on image below to enlarge
*Smoothwall with DMZ - on the above diagram simplify a not-so-complex rule,remember this: one basic law of networking that thy shall not make conflict ip's,subnet's or just computer naming,im saying that you shall not use same subnetting on 2 or 3 different lan cards on same computer,or else you won't get any connectivity,as much as possible that you have to make a way too far subnetting from the other on every lan card,example if your RED network card use a static ip: 10.0.0.*/254 on subnet mask: 255.0.0.0,then use the ip range of: 192.168.1.*/254 subnet mask: 255.255.255.0 on GREEN network card...and if you have an extra 3rd lan card for DMZ,try to use 192.168.0.*/254 on subnet: 255.255.255.128
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click on image below to enlarge
*Smoothwall with DMZ and AP on BLUE nic - a more complex networking ideal for Hotspots like bars,coffee shops,resto's and for I-Cafe too,diagram shows an add-on router with wifi which act as wireless AP(Access Point) and not as a direct router from modem.The wireless router WAN port are configured to be a static ip with the gateway and prime DNS of smoothwall,DMZ server is still active,this kind of networking is possible to browse its network from other subnets(pretty cool,huh!)
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click on image below to enlarge
*router added behind smoothwall - this one belongs to basic setup.As you can see,every time a machine server has a direct contact to a router or another machine server it makes the workstations to use the back end server or router ip address,one note for clarification,you cannot use the smoothwall ip as gateway or dns directly if you are on behind by another router or firewall.
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click on image below to enlarge
*setup with 2 or 3 switches - ummm,this is only 1 of the basic setup for I-cafe if you have 20 workstation but have a single switch with 16 ports,most likely the last resort of this is to buy a new router with atleast 4 port on it,oppsS!now a days,i don't see dealers who sell this kind of switches anymore,but routers with 4 ports do,for market wise you should bought a 24 or 16 port router,some routers have a port called UPLINK,the setup of 2 switches with uplink can most likely be the cable connected from 1st switch is connected to UPLINK port and the end cable be connect to port 1 of 2nd switch,big NOTE:if you use the uplink setup,the cable termination should be CROSSOVER,later on ill post the different kinds of crimping termination.if you have a switch with uplink ports,you still have a choice not to use the UPLINK,hence,you can use the port 1 of switch 1 and connect it to switch 2 on port 2 using straight or cisco termination.
this setup is good for corporate network which area has a 2nd or 3rd floor.
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Complex Networking:
click on image below to enlarge
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diagrams are linked to other sites,it may be deleted nor replaced by the webmaster. All explanations are brewed encoded by the me. I post this on another forum before but i think it might be good if this will be here knowing the fact that im the one who made all the research and explanations.
