On Thu, 2011-12-08 at 12:46 -0500, James Knott wrote:
Tethering works, but you might also want to consider those "stick" devices for wireless access. They appear to the computer as a dial up modem and they do work with Linux too.
I have had mixed luck with them. The most common one in Sweden (A Huwei from Tele2) almost works with Linux. There are endless discussions about it. I even had one on this list a year or so ago. But at the end of the day it does not work. I understand that Vodaphone have a modem that has Linux support. I think they actively support it. If I could get one, I guess I could use any GSM card in it? The customer could either have a dedicated GSM card, or a pay-as-you-go card they buy locally? We do not really want to get in the position of supporting exotic local devices. We are hoping for hardware we can select and deliver that works everywhere.
Once connected, openSUSE needs to get on the network. I would imagine that a telephone that supports tethering handles the IP address assigned to the computer? How it gets the address is of no concern. The computer will get an address. Right?
Once it has the address, should it be possible, knowing the IP address, to access the computer from the outside world? The whole discussion here assumes that this is possible. Perhaps that is controlled by the telephone? Or the local phone company?
If the IP address could be accessed, I guess the next step might be to register it with a dynamic DNS service so it can be know to us. Any suggestions on a DNS service? This will be used rather seldom. Mainly in times of difficulty or support. I could even consider a stupid solution where the system copies a file to a known IP address that we could look at.
With tethering, you'll likely find you have a NAT address, which means you will not be able to reach the remote computers. Even if the phone gets a public address, it still uses NAT for tethered devices. One way around this is to use 6in4 tunnelling to use IPv6 on the remote computers. You may also have to use it in the office, if you don't otherwise have IPv6 available. I use the client from http://gogonet.gogo6.com. If you register your connection, you will get a static IPv6 address. The Linux client has to be compiled, but there is an issue with 12.1. However, I have a fix available for that.
I use that gogo6 client to set up my own /56 subnet (that's about a trillion times the entire IPv4 address space) and run it in single address mode on my notebook. It works well.
I was expecting a NAT solution was going to be used. But since the computer knows where we are, perhaps a vpn, as has been suggested in another post in this thread, between us? -- Yours sincerely, Roger Oberholtzer OPQ Systems / Ramböll RST Office: Int +46 10-615 60 20 Mobile: Int +46 70-815 1696 roger.oberholtzer@ramboll.se ________________________________________ Ramböll Sverige AB Krukmakargatan 21 P.O. Box 17009 SE-104 62 Stockholm, Sweden www.rambollrst.se -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org