Dave, thank you for all the advice, I will look into all of it for sure, about the Telnet Application: I recall seeing one at sourceforge.net.
Hope that helps. On Wed, Mar 5, 2008 at 4:05 PM, Dave Baxter <[EMAIL PROTECTED]> wrote: > Hmmmm.... > > Probably right, Hamachi run's on full blown Windows (NT based), Linux or > Apple systems. Guess in principle it could run on something else, but > it's not open source..... > > Take a look at Tinc. That is an open source VPN system. Maybe that > could be adapted to your needs? http://www.tinc-vpn.org/ > > I don't know much about the mobile platform arena, but from my own > experiments and other messings, though UDP is easier to program (at > least I find it so) TCP is better at maintaining links, especaily > through multiple routers and firewall's etc. > > If you have control of the routers in question, it's not dificult to > manualy setup port forwarding of course, and there is the questionable > UPnP protocol where an "Application" can do it for itself. But, that > can also allow some very bad things to happen in regard to network > security. > > As you obviously know more about the mobile environment than I do, I'll > bow out now. But with one question in return... > > Do you (or anyone else) know of a generic Telnet client for phones like > the N6110? It'd be so usefull...... > > Cheers. > > Dave B. > > > > -----Original Message----- > > From: wayne forrest [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, March 05, 2008 7:06 AM > > To: ICS support mailing > > Subject: Re: [twsocket] UDP Hole Punching > > > > Dave, maybe I as not all that clear on my Specification: > > > > My ICS Clients will be Mobile PHones MIDP2.0, therefor I do > > not think Hamatchi will work, or would it ? > > > > On Tue, Mar 4, 2008 at 4:10 PM, Dave Baxter <[EMAIL PROTECTED]> wrote: > > > > > "NAT Traversal" is well documented, but "less than easy" to > > make work > > > from scratch.... > > > > > > But why bother rolling your own? Just download and use Hamachi. > > > (Google for it) Even the free one will start automaticaly when > > > Winderz boots, then you have a UDP based secure VPN between > > 2 (or more) sites. > > > Just about any LAN type app will run across it. (Versions for > > > Winders, Linux, and some Apple OSwhatsit type things) > > > > > > Works very well. I have no affiliation with Hamachi or > > LogMeIn, just > > > a very satisfied user of the free version so I can get to my home > > > Win2k desktop securely wherever I am, and leaving no unwanted holes > > > poked in the firewall. > > > > > > Cheers. > > > > > > Dave. > > > > > > > > > > -----Original Message----- > > > > From: JLIST [mailto:[EMAIL PROTECTED] > > > > Sent: Saturday, February 23, 2008 8:45 AM > > > > To: ICS support mailing > > > > Subject: Re: [twsocket] UDP Hole Punching > > > > > > > > My understanding is that it works on certain types of NAT > > firewalls. > > > > On these NATs, an external port is mapped to an internal IP:Port. > > > > If this is the case, all packets going to that external > > port will go > > > > to the internet IP:Port. > > > > > > > > Making it work is not that simple though, with the difficult part > > > > being coordinating two parties that do not talk to each other. > > > > I'm not sure what's being used in real life solutions but > > it sounds > > > > to me that both A and B have to have very frequent UDP > > > > communications with S, or have a TCP connection with S in > > order to > > > > coordinate a hole punching attempt. > > > > > > > > > Isn't the translation state based on the remote peer IP > > > > address, too? > > > > > Then the same translation created for A-S and B-S would not > > > > work when > > > > > you try to connect directly A with B. > > > > > > > > > ----- Original Message ----- > > > > > From: "wayne forrest" <[EMAIL PROTECTED]> > > > > > To: "ICS support mailing" <[email protected]> > > > > > Sent: Thursday, February 21, 2008 8:22 PM > > > > > Subject: [twsocket] UDP Hole Punching > > > > > > > > > > > > >> Has any one made a UDP Hole puncher with ICS ? > > > > >> > > > > >> Let A and B be the two hosts, each in its own private > > > > network; N1 and N2 > > > > > are > > > > >> the two NAT devices; S is a public server with a > > > > well-known globally > > > > >> reachable IP address. > > > > >> > > > > >> 1. A and B each begin a UDP conversation with S; the > > > > NAT devices N1 > > > > >> and N2 create UDP translation states and assign > > > > temporary external port > > > > >> numbers > > > > >> 2. S relays these port numbers back to A and B > > > > >> 3. A and B contact each others' NAT devices directly on > > > > the translated > > > > >> ports; the NAT devices use the previously created > > > > translation states > > > > > and > > > > >> send the packets to A and B > > > > >> > > > > >> If I were to implement the above, is it really that simple? > > > > >> > > > > >> or is there much more to it than that ? > > > > >> > > > > >> Any help appreciated, or alternatives, maybe a plugin / > > > > generic solution > > > > >> that can be incorporated. > > > > >> > > > > >> Our current setup is "Server on PC behind nat" and then > > > > client on Cell > > > > >> phone. > > > > >> > > > > >> We will have a lot of users not knowing how to do port > > forwarding. > > > > > > > > > > > > > > > > > > > This mail has been scanned by Palmer Cook Computer Services Limited. > > > www.palmercook.co.uk > > > -- > > > To unsubscribe or change your settings for TWSocket mailing list > > > please goto > > http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket > > > Visit our website at http://www.overbyte.be > > > > > > > > > > > -- > > C: 076 337 4368 > > T: 021 880 2037 > > F: 021 880 2530 > > > > > This mail has been scanned by Palmer Cook Computer Services Limited. > www.palmercook.co.uk > -- > To unsubscribe or change your settings for TWSocket mailing list > please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket > Visit our website at http://www.overbyte.be > -- C: 076 337 4368 T: 021 880 2037 F: 021 880 2530 -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
