SilentTech
join:2002-12-08
USA
| reply to apilosov
Re: NYC/DirecTV Broadband Gateway reprogramming
When you paperclip to erase the configuration, the gateway will wait for you to enter your DSL phone number at »10.5.1.2/ and this is used to look up your account in Telocity's database (over HTTP), which redirects the gateway to a cache server, from which the gateway downloads its configuration (also over HTTP). Unless you're in VerizonEast (formerly BellAtlantic, not GTE) or Ameritech territory (and not going through WorldCom), the gateway will actually send out a DHCP request the first time it is powered up with no configuration, and get its IP (the IP for the WAN interface, which we call the "DSLIP", pronounced "D-slip"). It also gets the LAN subnet information, via a vendor-specific option in the DHCP protocol. Apparently the Nortel Shasta router figures out where the DHCP request is coming from (based on VPI/VCI/slot/port) and adds that information to the DHCP query before passing the query on to the DHCP server. The DHCP server is able to use that information to find your account and assign the gateway the correct IP information, but the gateway won't use this for routing until the configuration is downloaded.
Ameritech uses PPPoE which works completely differently, and VerizonEast uses aggregate routing so the Shasta can't figure out who you are until you enter your phone number (that's why you get a blinking red status light - that indicates a DHCP failure). When you enter the DSL#, that is added to the DHCP request, and the request is sent again. Once the gateway has the DSL# and IP information (from DHCP), it does the HTTP download to get its configuration, and never does a DHCP request again.
The tricky part about what you're thinking of is, the DHCP request and HTTP download happen on the WAN interface, meaning the DHCP and HTTP servers have to be on the other side of a DSL connection. I've heard it's possible to get two DSL modems to sync to each other on a dry copper pair, meaning you could get a standard DSL modem acting as an Ethernet bridge, and connect it to the DirecTV DSL gateway via a phone line, but I don't know if this actually works.
I hope this information is helpful! |
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apilosov
join:2002-12-27
Forest Hills, NY
| You are absolutely correct as far as protocols, but I just want to make sure that the protocols are not different between "brick"/X1/X2.
Also, it is not possible to get sync on dry copper, DMT can't do that.
Again, I want to make a user-friendly way to reprogram the modems, for which I'd like to have access to all different modems... |
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anonymous2000
@pacbell.n
| reply to SilentTech
Is there a way I can statically assigned an IP Address to view »10.5.1.2/admin[?]- I don't want to install the direct tv software. I just want to access it directly from another machine via RJ45 or USB? It's not connected to my phone line anymore but I do have my password to access it. I just can't view the admin screen. I am missing something?
Is it:
10.5.1.2
255.255.255.0
10.5.1.1
Or is it:
255.255.255.252
Any Network Gurus? Cross-over cable? |
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graysonf
Premium,MVM
join:1999-07-16
Fort Lauderdale, FL
| Plug the modem into the NIC with a straight thru cable. Change the properties on the NIC to obtain IP address automatically. Reboot the computer. You should be able to surf to »10.5.1.2 if that's the right URL. I don't remember it. |
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pmpjcd
@floca.alerondi | reply to anonymous2000
the subnet mask is 255.255.255.252
and the IP you will need to use is the gateway address which should be 10.5.1.2 |
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parasonic
I Am Not A Bot
join:2002-03-29
Atlanta, GA
clubs: | Parts for the BDM come today, within the hour. Woot! Woot! |
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parasonic
I Am Not A Bot
join:2002-03-29
Atlanta, GA
clubs: | Parts are now in  |
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