PTunnel on Windows Mobile (CE) - General Topics

Hello,
Has anyone heard of any Ptunnel implementations for Windows Mobile (CE)?
Ptunnel is an application that allows you to reliably tunnel TCP connections to a remote host using ICMP echo request and reply packets, commonly known as ping requests and replies.
Setting: You're on the go, and stumble across an open wireless network. The network gives you an IP address, but won't let you send TCP or UDP packets out to the rest of the internet, for instance to check your mail. What to do? By chance, you discover that the network will allow you to ping any computer on the rest of the internet. With ptunnel, you can utilize this feature to check your mail, or do other things that require TCP.
The only reference to Ptunnel on Windows Mobile is here:
http://unsyncopated.com/wiki/ICMP Echo Request Tunnel for Windows Mobile 5
Has anyone tried anything like this?

Has anyone heard of this concept?

I'm very familiar with the concept (see SSH tunneling) but not by piggybacking in ICMP traffic. In my experience ICMP is blocked more often than regular HTTP.
I'm kind of curious how it works since most cases the port is what is being blocked, in which case most tunneling programs will work, you just choose the port you want. Not many home devices actually do deep packet inspection beyond port inspection, so I'm thinking pTunnel is just sending traffic over through a different port.

Related

IPSec VPN

Has anyone looked at some type of IPSec VPN application? We use a Cisco VPN Concentrator that would make an awesome addition to this phone. I had the BlueFire VPN on my Windows Mobile phone which made connecting to routers/switches and servers on the go awesome.
Any ideas? I'm not a strong linux person, nor am i a programmer so unfortunatly i can' go an write my own
Cheers,
CapnDoody (Chris)

[Q] Is there anything for Android that supports IPSec with XAUTH?

Just straight IPSec with XAUTH. No L2TP. The built in VPN client is *really* dumbed down and very inflexible. No company is going to change the way their VPN is configured just to suit a few android users.
It would be nice to have something that would allow me to create my own Phase 1 and Phase 2 proposals, use XAUTH only, certs, etc... and also be able to configure multiple concurrent tunnels.

[Q] ipv4 vs ipv6 preference

I have a Tunnelbroker 4to6 static tunnel connection to my router. My router feeds dual stack ip-addresses to all wifi clients. As it is 2012 all platforms (windows 7, linux and android) prefers ipv6 over ipv4 making sites with only ipv4 load balancers like youtube run considerably slower. However I have successfully set it so that ipv4 have higher priority in both windows 7 and linux. So I'm wondering if there are anything like /etc/gai.conf under android or if there are any other solution to this?
I'm running Paranoid android (based on cm10) on HTC One X.
Regards!
There got to be someone who knows how to set this!! Please help me!
Jayus
@Jayus, did you manage to solve this? I too have a usecase for this: an app tries to contact a server and this server _does_ have an AAAA record but is not yet reachable via IPv6. Thus, contacting the server via IPv6 fails, making the app to fail. I'd like to prefer IPv4 for _certain_ addresses.
Setting net.ipv6.conf.all.disable_ipv6=1 helps, but this disables IPv6 system wide and I don't want this.

Hamachi alternative for WinRT

Is there any alternative to Hamachi for WinRT (with the WinRT device being the client)..
Because RT doesn't run x86 apps, I need to VPN into a machine that sits behind a firewall with no port forwarding for RDP (remote desktop).
Therefore I want to run some VPN server on the machine so that the Surface RT can connect to the local LAN over the internet for an RDP session.
RT has the standard Windows VPN capabilities built in, I think (haven't actually tried). Third-party VPNs aren't supported without jailbreak, and won't be until Microsoft officially makes it available; WinRT apps simply do not have the permissions to create a network interface or re-route traffic (remember the days when Android VPN apps needed to be run as root? That's basically where RT still is).
Out of curiosity, if you can't forward the RDP port, why do you expect you'd be able to hit a VPN server behind the firewall? If it's just a matter of them specifically blocking port 3389, you can change the port that Terminal Services (RDP server) listens on in the registry.
You could try teamviewer, they can route the traffic through their servers so you don't need to forward a port to your pc in a firewall
hberntsen said:
You could try teamviewer, they can route the traffic through their servers so you don't need to forward a port to your pc in a firewall
Click to expand...
Click to collapse
I am planning to try that but was hoping there was also a service like Hamachi available ...
GoodDayToDie said:
RT has the standard Windows VPN capabilities built in, I think (haven't actually tried). Third-party VPNs aren't supported without jailbreak, and won't be until Microsoft officially makes it available; WinRT apps simply do not have the permissions to create a network interface or re-route traffic (remember the days when Android VPN apps needed to be run as root? That's basically where RT still is).
Click to expand...
Click to collapse
GoodDayToDie said:
Out of curiosity, if you can't forward the RDP port, why do you expect you'd be able to hit a VPN server behind the firewall? If it's just a matter of them specifically blocking port 3389, you can change the port that Terminal Services (RDP server) listens on in the registry.
Click to expand...
Click to collapse
Look up Hamachi and reread my OP
Fair point. You're not actually VPNing *into* your machine, but into a Hamachi-operated central management server. That has... interesting... security implications, but I suppose it does provide convenience (it would also be an immediate termination offense anywhere I've worked that had a firewall configuration like you describe, but that's your problem, not mine). Why can't you set up port forwarding in the firewall? Also, you did expressly state "Therefore I want to run some VPN server on the machine" where "the machine" presumably means the one behind the firewall...
The only time I've tried using Hamachi before was for "LAN" gaming over the 'net, which I decided not to do after looking at how it worked. That was long enough ago I'd forgotten the details of how it worked.
My first post still stands. There are at least two things Hamachi (or similar) would need to do that are impossible for a WinRT app (or for any software on RT without a jailbreak, really): create a network interface (we haven't even managed that *with* jailbreak, because except in the case of the semi-official driver from Pluggable we don't have any NDIS6 driver we can compile for ARM) and control a network interface from an app (there are possibly some rather hacky ways this could be done, but nothing we have right now).
Good Thank you:fingers-crossed:
Maybe someone will port Zerotier? It's too complicated for me, please help me make my life little easier

Galaxy Note 10+ OpenVPN Client

Hi, I hope this is the best place for my question.
I need to use my Galaxy Note+ to connect to my company´s VPN trough OpenVPN Client. Everything is working fine with the connection, etc. But, to use my company resources I need to add a static route on Android, because my VPN IP address is on a different IP range from the work network IP range. I am the first one to use OpenVPN with this purpose in my company and I´ve been searching on Google with no success for this case. Is there a way to solve this?
usually, the route was push by the server openvpn, perhaps hou can ask your administrator to modify it

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