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broadband wireless routers
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<blockquote data-quote="thread_killer" data-source="post: 759323" data-attributes="member: 2163"><p>turns out the netopia broadband modem isn't a <strong>mo</strong>dulating / <strong>dem</strong>odulating device at all.</p><p></p><p>it's a router too. that is, it routes packets between two networks. one being your WAN interface, which gets a nice eircom(tm) broadband(tm) IP(tm) address(tm) either statically assigned, or from a pool of addys. the other is your LAN interface, which is (knowing eircom) using the good old unroutable 192.168.1.x/24 class C. (i prefer the ten network myself).</p><p></p><p>so there's no need to hook the netopia "modem" up to your broadband router, use one or the other. you'll have to configure the new router with some "settings" from the old one before it will work.</p><p></p><p>to get wireless working you should first try it with all encryption turned off. then make sure both of the wireless devices are using the same ESSID. you will have to, normally, log into the router/switch/wirelessaccesspoint-in-one device and enable wireless. you may have to specify that you want the DHCP server to work on the wireless interface on the "modem". you could always assign one statically to your computer, just use the same network address as the "modem". then your AP should start sending beacon packets and your windows machine should detect this automagically.</p><p></p><p>failing that,</p><p></p><p>you should get a wireless network sniffing program and run it to make sure that your wireless Access Point is working. NetStumbler is one for windows that works. Kismet for *nix. there's lots of them for *nix. this program will put your wireless interface into "promiscious" mode, so it will accpet and process all packets, even if they aren't addressed to that node.</p><p></p><p>when you've established connectivity, then go about turning on encryption. preferable WPA2. don't use WEP. go out and buy a new card for yourself if your current one doesn't support WPA.</p></blockquote><p></p>
[QUOTE="thread_killer, post: 759323, member: 2163"] turns out the netopia broadband modem isn't a [b]mo[/b]dulating / [b]dem[/b]odulating device at all. it's a router too. that is, it routes packets between two networks. one being your WAN interface, which gets a nice eircom(tm) broadband(tm) IP(tm) address(tm) either statically assigned, or from a pool of addys. the other is your LAN interface, which is (knowing eircom) using the good old unroutable 192.168.1.x/24 class C. (i prefer the ten network myself). so there's no need to hook the netopia "modem" up to your broadband router, use one or the other. you'll have to configure the new router with some "settings" from the old one before it will work. to get wireless working you should first try it with all encryption turned off. then make sure both of the wireless devices are using the same ESSID. you will have to, normally, log into the router/switch/wirelessaccesspoint-in-one device and enable wireless. you may have to specify that you want the DHCP server to work on the wireless interface on the "modem". you could always assign one statically to your computer, just use the same network address as the "modem". then your AP should start sending beacon packets and your windows machine should detect this automagically. failing that, you should get a wireless network sniffing program and run it to make sure that your wireless Access Point is working. NetStumbler is one for windows that works. Kismet for *nix. there's lots of them for *nix. this program will put your wireless interface into "promiscious" mode, so it will accpet and process all packets, even if they aren't addressed to that node. when you've established connectivity, then go about turning on encryption. preferable WPA2. don't use WEP. go out and buy a new card for yourself if your current one doesn't support WPA. [/QUOTE]
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