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Brad Fitzpatrick

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GPRS'ing on the Interweb [Feb. 9th, 2004|04:26 pm]
Brad Fitzpatrick
I can connect to the Interweb now from my laptop over Bluetooth over GPRS.

But just the web. Only ports 80, 25, and 53 work. can use ssh if I make ssh listen on port 25, though. :-)

So I'm on the phone with T-Mobile, waiting on hold for tier 2 support people. I had no problem with tier 1... just spouted off acronyms and gave him crap for not knowing the web wasn't the Internet.

Off the phone now. Talked to a nice Indian fellow who said he didn't know the difference between the "internet2.voicestream.com" and "internet3.voicestream.com" APNs at all, but he'd been trying to figure it out himself. He alluded to internet3 allowing VPN ports out, but that was a total guess he admitted.

I asked if there was documentation. "No, not on our site. I've tried to find it myself."

Greeeat.

So, I have the interweb working at least, and ssh to the office listening on port 25. I guess I can ssh elsewhere from there.

Lame.
LinkReply

Comments:
[User Picture]From: jwz
2004-02-09 04:31 pm (UTC)
Surely someone has built an SMTP-based IP transport? It's got be easier than pigeon-wrangling!
(Reply) (Thread)
[User Picture]From: brad
2004-02-09 04:36 pm (UTC)

Re:

Yeah, I suppose I could just run any number of VPN client/servers, with the server listening on port 25.
(Reply) (Parent) (Thread)
[User Picture]From: jwz
2004-02-09 04:39 pm (UTC)
No, I meant actually email packets.

It was a joke. Ha ha.
(Reply) (Parent) (Thread)
[User Picture]From: robflynn
2004-02-09 04:48 pm (UTC)

Re:

Wanna join me in my IP over morse code project?
(Reply) (Parent) (Thread)
From: evan
2004-02-09 08:30 pm (UTC)

Re:

It exists. I saw it on slashdot a long time ago. I seem to recall mention that stuff like ping would report, y'know, 5 minute latencies.
(Reply) (Parent) (Thread)
[User Picture]From: russ
2004-02-09 04:51 pm (UTC)

Re:

how about IP over DNS? :) from the readme:
Note: The timing of the client is optimized for an 64k-line at the moment. Without modifications you shouldn't get more than 4 kb/sec even on faster lines

(Reply) (Parent) (Thread)
(Deleted comment)
[User Picture]From: brad
2004-02-09 04:57 pm (UTC)

Re:

Word, thanks.
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[User Picture]From: tytso
2004-02-09 04:59 pm (UTC)
I use internet2.voicestream.net, and I can connect via ssh. Unfortunately there is still enough wierd sh*t with transparent proxies, etc., that I generally run everything over a compressed encrypted link via ssh. (i.e., "ssh -L 3128:127.0.0.1:3128 -D 1080 -C my.server.org")
(Reply) (Thread)
[User Picture]From: brad
2004-02-09 05:02 pm (UTC)

Re:

Thanks for the hope!

I think I'm on the way to understanding here. I setup a new GPRS account on my phone, with cid=2....

I read internet2 is behind NAT, and internet3 gets a public IP.

I'm reluctant to setup an SSH tunnel just because it seems it'd just add even more latency to the link.
(Reply) (Parent) (Thread)
[User Picture]From: revjim
2004-02-09 05:14 pm (UTC)
T-mobile is utterly clueless when it comes to what can and can't be done with each level of access and the various APs. I was able to get this much from them...

T-Zones means you use a WAP proxy, don't get a REAL IP, and the WAP proxy only allows SOME ports. They said they wouldn't tell me which ports. So far, I've used 25, 110, 143, and 80 without trouble.

For $20/mo you can Unlimited Internet access. In order to determine the difference, I had a T-Mobile guy put me on that plan for 5 minutes, just so I could see. You get a real IP and, it seems, unrestricted internet access. I couldn't find a port that wasn't open, and I was even running one app on a non-standard port (1090, I think).

All in all, the extra money makes a world of a difference in terms of what you can do. However, for me, it's just not worth it.
(Reply) (Thread)
[User Picture]From: brad
2004-02-09 05:21 pm (UTC)

Re:

I'm paying the $20/month, though. I just can't get PPP to work with anything other than the t-zones GPRS profile on my phone.

I say, yo:

ATD*99***2#

Which should be profile 2, and it spews forever "IPCP ConfReq" and "IPCP ConfRej" errors, looping from id=0x1 to id=0xff and back again.

I hate PPP with a passion.

(Reply) (Parent) (Thread)
[User Picture]From: tytso
2004-02-09 06:26 pm (UTC)
Make sure you have the following ppp options set:


  • noipdefault
  • ipcp-accept-local
  • ipcp-accept-remote
  • novj
  • novjccomp


That may be the reason for the t-mobile ppp server rejecting your proposed configuration proposal from your ppp client....
(Reply) (Parent) (Thread)
[User Picture]From: robflynn
2004-02-09 07:24 pm (UTC)
I have tmobile and thought about doing this - what kind of transfer rates do you get? (or should you get :P)
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[User Picture]From: brad
2004-02-09 08:16 pm (UTC)

Re:

40 Kbps is realistic max. ssh and web aren't as bad as I thought.
(Reply) (Parent) (Thread)
[User Picture]From: robflynn
2004-02-10 07:06 am (UTC)

Re:

Hmm.. faster than I thought it'd be. Maybe I'll look into it ....
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