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#168957 - 04/07/2003 10:52 cheap serial/usb (ppp) to ethernet solution?
Daria carpal tunnel Registered: 24/01/2002 Posts: 3937 Loc: Providence, RI	Basically, I'd like to be able to use my cell phone as a network in the car for the empeg and potentially other things. I'm hoping there's a small device which can either run ppp on a serial port and bridge or nat ethernet. Does such a thing exist?
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#168958 - 04/07/2003 11:24 Re: cheap serial/usb (ppp) to ethernet solution? [Re: Daria]
CrackersMcCheese pooh-bah Registered: 14/01/2002 Posts: 2489	What would you be connecting to the empeg for? Data transfer would be SLOW. Best you could do is to maybe connect your cell phone to a PDA or notebook and perhaps do something that way. I don't think its possible for phones to do what you want to on their own - unless its a BT one and range is short and no good for data. Of course, I could be very very wrong
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#168959 - 04/07/2003 20:58 Re: cheap serial/usb (ppp) to ethernet solution? [Re: CrackersMcCheese]
Daria carpal tunnel Registered: 24/01/2002 Posts: 3937 Loc: Providence, RI	What would you be connecting to the empeg for? Data transfer would be SLOW. It has a GPS receiver attached. I could do APRS gatewaying. Best you could do is to maybe connect your cell phone to a PDA or notebook and perhaps do something that way. I don't think its possible for phones to do what you want to on their own Well, yes, the point was, I don't want to use a laptop, I want to use some purpose-built computer for it. When I hook the phone to the laptop, I make the laptop dial, and do PPP, and it works. I want to disintermediate the laptop, and use something whose purpose is just "talk PPP on a serial port and ethernet on a 10bT"
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#168960 - 06/07/2003 09:47 Re: cheap serial/usb (ppp) to ethernet solution? [Re: Daria]
TheAmigo enthusiast Registered: 14/09/2000 Posts: 363	something whose purpose is just "talk PPP on a serial port and ethernet on a 10bT" Sounds like you want a terminal server. Here's a post where I linked to a couple. The cheaper way would be to write a pppd for the TINI. _________________________ --The Amigo
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#168961 - 06/07/2003 10:01 Re: cheap serial/usb (ppp) to ethernet solution? [Re: TheAmigo]
Daria carpal tunnel Registered: 24/01/2002 Posts: 3937 Loc: Providence, RI	Sounds like you want a terminal server. Not really. The cheaper way would be to write a pppd for the TINI. Probably, except for the bit where I'd be paying someone to write the java.
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#168962 - 06/07/2003 17:55 Re: cheap serial/usb (ppp) to ethernet solution? [Re: Daria]
n6mod enthusiast Registered: 27/09/1999 Posts: 200 Loc: Berkeley, CA	Acutally, I think there's a pppd for the TINI freely available. I'll let you know when I get that far in the terminal server project. I have a pile of PCM-4822 boards that would do the trick as well, but they're nearly the size of the empeg. One more thought...all you really need for this is something like the old Netopia access routers that could run with an external modem. Those might be the proverbial $20 on eBay. -Z Edited by n6mod (06/07/2003 18:05) _________________________ -Zandr Mk.IIa #010101243 currently getting a 500GB SSD. More spares in the shed.
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#168963 - 06/07/2003 19:21 Re: cheap serial/usb (ppp) to ethernet solution? [Re: n6mod]
Daria carpal tunnel Registered: 24/01/2002 Posts: 3937 Loc: Providence, RI	Acutally, I think there's a pppd for the TINI freely available. There is, but i don't think you can get deep enough in the network stack to bridge.
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#168964 - 06/07/2003 20:16 Re: cheap serial/usb (ppp) to ethernet solution? [Re: Daria]
n6mod enthusiast Registered: 27/09/1999 Posts: 200 Loc: Berkeley, CA	I don't think you want to bridge anyway. Isn't what you're after the equivalent of a router with NAT? Private addresses on you in-car LAN, and an un-numbered PPP link to your (mobile) ISP. In any case, I've downloaded all the TINI docs from Dallas, and will be ordering a one tomorrow. I'll let you know what I find. _________________________ -Zandr Mk.IIa #010101243 currently getting a 500GB SSD. More spares in the shed.
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#168965 - 06/07/2003 20:22 Re: cheap serial/usb (ppp) to ethernet solution? [Re: n6mod]
Daria carpal tunnel Registered: 24/01/2002 Posts: 3937 Loc: Providence, RI	A router with NAT would be nice, but that's even harder, I don't want to write conntracking in java. In any case, I've downloaded all the TINI docs from Dallas, and will be ordering a one tomorrow. I'll let you know what I find. Ok. Thanks.
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#168966 - 18/07/2003 15:44 Re: cheap serial/usb (ppp) to ethernet solution? [Re: Daria]
n6mod enthusiast Registered: 27/09/1999 Posts: 200 Loc: Berkeley, CA	It looks like the approach I'm going to be taking is to make the TINI a dumb terminal server, and use ttyd from termpkg. ttyd creates virtual tty devices to make serial ports on term. servers look local. So then you can run pppd on the empeg and reach through a term. server device to get to your phone. _________________________ -Zandr Mk.IIa #010101243 currently getting a 500GB SSD. More spares in the shed.
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#168967 - 18/07/2003 16:05 Re: cheap serial/usb (ppp) to ethernet solution? [Re: n6mod]
Daria carpal tunnel Registered: 24/01/2002 Posts: 3937 Loc: Providence, RI	That sounds plausible. I guess I'll look more after I get some food in me.
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#168968 - 04/10/2004 17:38 Re: cheap serial/usb (ppp) to ethernet solution? [Re: n6mod]
Daria carpal tunnel Registered: 24/01/2002 Posts: 3937 Loc: Providence, RI	Hm. http://www.ibutton.com/TINI/applications/sertoeth/ I wonder if it can do ppp. Still reading.
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