wireless connection issues...
Discussion
BliarOut said:
Yup, but if one of your computers is one of those naughty ones it might not be doing the bingo ball thing... Booting them in sequence should let you figure out which devices it actually is (or it might go away but that's for reasons not covered till book 7b) 
When's 7b 'Routers for Dummies' come out ?I'll save a bit of time and write 9C, Janet & John's pocket internet compendium
We know all about bingo bag man or as he's more commonly known, Mr DHCP but he also has a couple of mates who are needed to make computers talk to each other. Their names are Mr DNS and Mr Router. Don't let their formal sounding names scare you, they just do a job.
Not only do computers like numbers but for us to talk to them they need names too. The job of names is handled by Mr DNS. Now all Mr DNS does is convert names into bingo numbers known as IP addresses. So, your computer wakes up and grabs a bingo ball but we don't really know which computers name goes with which bingo ball at this stage.
Once the computer has grabbed it's bingo ball it wanders along to see Mr DNS who is in charge of all the name badges. He maintains a list of all the name badges he knows about. He won't know about all the names because there are just too many of them and that would slow him down when he goes looking for one but he does know the name of a man who does if he gets stuck. He just asks his boss and his boss will tell him which of the other Mr DNSs to ask. Hey presto, we have a simple system that enables every computer to find out the name of other computers and what it's IP address is.
Now that's all well and good, but how do they actually find each other? It's easy really, that's the job of Mr Router. The bingo balls actually have two numbers printed on them, an IP address and a subnet mask. Don't let the names scare you, it's exactly the same as street names and house numbers. Let me explain
192.168.0.1 is an IP address
255.255.255.0 is a subnet mask.
The 255's indicate which bit is the street and the 0's indicate which bit is the house address.
So, in the above example the house is number 1 in the street 192.168.0 (boring name, innit) Now we need a way of finding our way around the streets and routing is kinda like sat nav. Your PC will have a default gateway. All that is is the number of your nearest router. When you want to talk to someone who isn't in street 192.168.0 you ask the router. Now Mr Router knows about all the neighbouring streets and can get you on your way, but once again he doesn't know where every street is. So Mr Router does a very similar trick to Mr DNS. He too has a default gateway and that's where he directs all the traffic that he doesn't know about to go and ask.
Because all routers know about their neighbours, sooner or later by asking default gateways en route the traffic can find it's way to it's final destination.
Your home router will actually do the job of Mr DHCP, Mr DNS and Mr Router in one simple little box.
Et voila, there you have it, the internet simplified
We know all about bingo bag man or as he's more commonly known, Mr DHCP but he also has a couple of mates who are needed to make computers talk to each other. Their names are Mr DNS and Mr Router. Don't let their formal sounding names scare you, they just do a job.
Not only do computers like numbers but for us to talk to them they need names too. The job of names is handled by Mr DNS. Now all Mr DNS does is convert names into bingo numbers known as IP addresses. So, your computer wakes up and grabs a bingo ball but we don't really know which computers name goes with which bingo ball at this stage.
Once the computer has grabbed it's bingo ball it wanders along to see Mr DNS who is in charge of all the name badges. He maintains a list of all the name badges he knows about. He won't know about all the names because there are just too many of them and that would slow him down when he goes looking for one but he does know the name of a man who does if he gets stuck. He just asks his boss and his boss will tell him which of the other Mr DNSs to ask. Hey presto, we have a simple system that enables every computer to find out the name of other computers and what it's IP address is.
Now that's all well and good, but how do they actually find each other? It's easy really, that's the job of Mr Router. The bingo balls actually have two numbers printed on them, an IP address and a subnet mask. Don't let the names scare you, it's exactly the same as street names and house numbers. Let me explain
192.168.0.1 is an IP address
255.255.255.0 is a subnet mask.
The 255's indicate which bit is the street and the 0's indicate which bit is the house address.
So, in the above example the house is number 1 in the street 192.168.0 (boring name, innit) Now we need a way of finding our way around the streets and routing is kinda like sat nav. Your PC will have a default gateway. All that is is the number of your nearest router. When you want to talk to someone who isn't in street 192.168.0 you ask the router. Now Mr Router knows about all the neighbouring streets and can get you on your way, but once again he doesn't know where every street is. So Mr Router does a very similar trick to Mr DNS. He too has a default gateway and that's where he directs all the traffic that he doesn't know about to go and ask.
Because all routers know about their neighbours, sooner or later by asking default gateways en route the traffic can find it's way to it's final destination.
Your home router will actually do the job of Mr DHCP, Mr DNS and Mr Router in one simple little box.
Et voila, there you have it, the internet simplified
Gassing Station | Computers, Gadgets & Stuff | Top of Page | What's New | My Stuff