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802.11 b/g/n Wi-Fi Card
On 5/26/2016 at 6:21:59 PM Paul wrote:
tb wrote: On 5/26/2016 at 1:49:26 PM Paul wrote: What flavor USB ports does it have ? USB2 or USB3 ? You'd want USB3 to cover all possibilities. If the laptop ports are USB2, you might get little better than you have now. https://en.wikipedia.org/wiki/802.11ac And I can see a few different ones for sale. You'd probably want the router in the same room, to get impressive transfers. I don't think 5GHz has much penetration capability. http://www.newegg.com/Product/Produc...82E16833315123 There is stuff like WiGig on 60GHz band, but that definitely is same-room, line of sight. Always check the reviews, to sift out the really bad stuff. Paul Ports are USB3. While I have your attention, let me ask a follow-up question: I have ADSL with AT&T and they have provided the modem for connecting to their network. I know for a fact that the modem (which also doubles as router) is not IPv6 compliant. If I purchase an IPv6-compliant router am I wasting my money since the AT&T modem cannot handle that network standard? Can you put the AT&T modem in "bridged" mode ? When in bridged mode, it functions as "plumbing". It's not allowed to interfere with the packet stream. In bridged mode, just the modem is effectively functioning, and the port you plug into, gets PPPOE encapsulated ethernet packets. The next device in the chain, handles PPPOE authentication and de-capsulating. In the following diagram, my new VOIP ATA gets the chore of converting PPPOE into vanilla Ethernet, providing DHCP addresses and so on. That's how I run my modem/router. I run it in "bridged" mode, because the router part on that box, sucks. This is my network setup. The modem/router is noted for having a good ADSL front end, which is why I bought it :-) modem/router --- VOIP ATA ------- GbE switch ---- bridged decodes PPPOE ---- routes phone ---- to RJ11 ports ---- I used to have another router between the ATA and GbE, but dumped it recently and retired it. Before the VOIP ATA was there, a little $39.95 router did the PPPOE, did the DHCP and so on. ******* Back in the dialup days, there was PPP too. It stands for Point to Point Protocol. During the first phase of connecting to the ISP, it functions in text mode. If you ran a trace on it, you'd see "USER" and "PASS". The two ends negotiate encapsulation (whether headers are compressed or not) and so on. After the negotiation phase is complete, it switches to binary transport and the trace would turn to garbage if you tapped into it then. Well, the broadband uses the same silly mechanism, only the byte stream is carried in Ethernet packets. There is "overhead" added to the stream of packets from the ISP. When you first "connect" to the ISP, the traditional "USER" and "PASS" happens, just like in dialup days. That's why, in the above diagram, the ATA box has my ISP username and password stored in it. So the ATA can automatically connect to the ISP, as soon as the power comes on. And that allows my phone to work (more or less) 24 hours a day. The phone is connected to a traditional recorder, for voice mail. I don't use any fancy digital solution for that. In addition to PPPOE, there is PPPOA. The size of the encapsulation changes, the lashed up connection has a VPI and VCI. These are ATM or Asynchronous Transfer Mode terminologies (and used because the DSLAM may actually talk ATM over fiber, to the Central Office). If you set up the ATT modem in bridged mode, and it happens to be a PPPOA setup, the web page with the modem settings may have a box for VPI and VCI. Typical values are 0 and 35, but you should consult the little card the ISP gave you, that contains those details. You are likely to need that, when bridging. Check to see if the ISP has a FAQ page on "how to bridge". If you break your home network, and need help, don't forget that the public library has an "Express" computer, that can be booked for 15 minute usage periods. Most of the library machines, you have to book them in advance. An "express" computer may be available, for short stints where you need to fill out a form online or the like. I've used that before when I was "completely busted" at home :-) We used to have Freenet here, but Freenet is no longer free :-) And this basically means, if you plan on "breaking" your modem settings, do it M-F 9-5, so the library can provide your backup Internet service. If I managed to break mine right now, my phone wouldn't even work any more. As I moved to VOIP to save a bundle. Paul This is an extract from the instructions for bridging my 2Wire 2701HG modem: Bridge Network Settings: The Bridge Network pane allows you to create a local network that has broadband-accessible IP addresses. Bridge Network is a public network in which the local network is an extension of the broadband network and does not require any special routing. Computers that are assigned Bridge Network IP addresses operate without the use of Network Address Translation (NAT). This feature is typically used in conjunction with broadband service that provides a range of IP addresses. Once enabled, the bridge network IP addresses can be assigned to local computers. So, the bridging can be done. However, I don't understand the part that states "This feature is typically used in conjunction with broadband service that provides a range of IP addresses." Would I have to get this range of IP addresses from AT&T and manually assign an IP address to everything that connects to the network? If so, that's way above my skills... -- tb |
#2
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802.11 b/g/n Wi-Fi Card
tb wrote:
On 5/26/2016 at 6:21:59 PM Paul wrote: tb wrote: On 5/26/2016 at 1:49:26 PM Paul wrote: What flavor USB ports does it have ? USB2 or USB3 ? You'd want USB3 to cover all possibilities. If the laptop ports are USB2, you might get little better than you have now. https://en.wikipedia.org/wiki/802.11ac And I can see a few different ones for sale. You'd probably want the router in the same room, to get impressive transfers. I don't think 5GHz has much penetration capability. http://www.newegg.com/Product/Produc...82E16833315123 There is stuff like WiGig on 60GHz band, but that definitely is same-room, line of sight. Always check the reviews, to sift out the really bad stuff. Paul Ports are USB3. While I have your attention, let me ask a follow-up question: I have ADSL with AT&T and they have provided the modem for connecting to their network. I know for a fact that the modem (which also doubles as router) is not IPv6 compliant. If I purchase an IPv6-compliant router am I wasting my money since the AT&T modem cannot handle that network standard? Can you put the AT&T modem in "bridged" mode ? When in bridged mode, it functions as "plumbing". It's not allowed to interfere with the packet stream. In bridged mode, just the modem is effectively functioning, and the port you plug into, gets PPPOE encapsulated ethernet packets. The next device in the chain, handles PPPOE authentication and de-capsulating. In the following diagram, my new VOIP ATA gets the chore of converting PPPOE into vanilla Ethernet, providing DHCP addresses and so on. That's how I run my modem/router. I run it in "bridged" mode, because the router part on that box, sucks. This is my network setup. The modem/router is noted for having a good ADSL front end, which is why I bought it :-) modem/router --- VOIP ATA ------- GbE switch ---- bridged decodes PPPOE ---- routes phone ---- to RJ11 ports ---- I used to have another router between the ATA and GbE, but dumped it recently and retired it. Before the VOIP ATA was there, a little $39.95 router did the PPPOE, did the DHCP and so on. ******* Back in the dialup days, there was PPP too. It stands for Point to Point Protocol. During the first phase of connecting to the ISP, it functions in text mode. If you ran a trace on it, you'd see "USER" and "PASS". The two ends negotiate encapsulation (whether headers are compressed or not) and so on. After the negotiation phase is complete, it switches to binary transport and the trace would turn to garbage if you tapped into it then. Well, the broadband uses the same silly mechanism, only the byte stream is carried in Ethernet packets. There is "overhead" added to the stream of packets from the ISP. When you first "connect" to the ISP, the traditional "USER" and "PASS" happens, just like in dialup days. That's why, in the above diagram, the ATA box has my ISP username and password stored in it. So the ATA can automatically connect to the ISP, as soon as the power comes on. And that allows my phone to work (more or less) 24 hours a day. The phone is connected to a traditional recorder, for voice mail. I don't use any fancy digital solution for that. In addition to PPPOE, there is PPPOA. The size of the encapsulation changes, the lashed up connection has a VPI and VCI. These are ATM or Asynchronous Transfer Mode terminologies (and used because the DSLAM may actually talk ATM over fiber, to the Central Office). If you set up the ATT modem in bridged mode, and it happens to be a PPPOA setup, the web page with the modem settings may have a box for VPI and VCI. Typical values are 0 and 35, but you should consult the little card the ISP gave you, that contains those details. You are likely to need that, when bridging. Check to see if the ISP has a FAQ page on "how to bridge". If you break your home network, and need help, don't forget that the public library has an "Express" computer, that can be booked for 15 minute usage periods. Most of the library machines, you have to book them in advance. An "express" computer may be available, for short stints where you need to fill out a form online or the like. I've used that before when I was "completely busted" at home :-) We used to have Freenet here, but Freenet is no longer free :-) And this basically means, if you plan on "breaking" your modem settings, do it M-F 9-5, so the library can provide your backup Internet service. If I managed to break mine right now, my phone wouldn't even work any more. As I moved to VOIP to save a bundle. Paul This is an extract from the instructions for bridging my 2Wire 2701HG modem: Bridge Network Settings: The Bridge Network pane allows you to create a local network that has broadband-accessible IP addresses. Bridge Network is a public network in which the local network is an extension of the broadband network and does not require any special routing. Computers that are assigned Bridge Network IP addresses operate without the use of Network Address Translation (NAT). This feature is typically used in conjunction with broadband service that provides a range of IP addresses. Once enabled, the bridge network IP addresses can be assigned to local computers. So, the bridging can be done. However, I don't understand the part that states "This feature is typically used in conjunction with broadband service that provides a range of IP addresses." Would I have to get this range of IP addresses from AT&T and manually assign an IP address to everything that connects to the network? If so, that's way above my skills... That doesn't sound right. That sounds like what I see here on PDF page 25 (Figure 11). http://www.2wire.com/pages/pdfs/2701HG_user_guide.pdf The "DSL and ATM" part appears more or less appropriate. A defined VPI and VCI. It's the part below. You don't want it doing the PPPOE within the 2701HG or doing the DHCP. And this article makes it sound like it doesn't have the tick box needed to get it to do that. Instead, this guy recommends disabling it bit by bit. http://www.scomputerservicesgta.com/...ograms/op3.php This gives a similar recipe, only they use some firmware to "unlock" a telco unit, then do the disablements. If your unit was locked, you might not have got that far anyway. http://www.wikihow.com/Set-Your-Bell...to-Bridge-Mode The 2701HG should not have your PPPOE username and password in it. It should not be able to log in, or de-capsulate any PPPOE or PPPOA. That's the job of the next box down the road. Like, some other router. Or in my case, my VOIP ATA handles my PPPOE dialing and authentication. Even your computer can handle PPPOE. You can take a bridged modem/router, then plug your computer right into the LAN port. And end up with a Windows PC with an Internet address. (You still need a PPPOE dialog on the Windows PC, with the username and password for dialing PPP.) Anyone who wants to scan you, test the Windows Firewall, is all set to do so when you connect that way. And that's why you don't generally want to do that. I think I was connected that way once for a couple minutes, but that was enough risk for me. And I put things back the way they were, with IPV4 and NAT routing right after the bridged box. Paul |
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