Open VPN vs. PPTP vs. L2TP?

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blackdog709

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Jan 3, 2012
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I'm running Kepard VPN on both an Android and a PC laptop. The Android does fine but the PC. has connectivity problems on most public Wi-Fi. Kepard support says that some Wi-Fi locations may be blocking some VPN protocols. Obviously the kid in the coffee shop is not going to have a clue about this, so my question is..is there a preferred or most -universal protocol? I have no idea which VPN protocol to set Kepard to... Open VPN, PPTP, or L2TP. Any help would be appreciated. Thanks.
 
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bill001g

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Aug 9, 2012
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Openvpn uses ssl which tends to get though firewalls and routers a little easier. Things like pptp and l2tp use other "protocols" that can not be natted or you have to run in what is called natt mode for l2tp. Problem is when you are trying to get ssl to get though firewall you will be forced to use TCP which is a little slower than UDP depending on your latency. Generally l2tp using IPSEC is the most supported of any vpn. It has been around the longest but it is easily blocked if that is the goal.

So if nobody is actively trying to block you use l2tp. If there are filters then use openvpn and even that can be blocked it seems the Chinese have found that it does not actually run ssl so their are now deep packet inspection filters to find it. There are some true SSLVPN products but I am unsure how many VPN sites support them.
 
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sg4rb0

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Dec 4, 2012
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The security on a l2tp vpn is solid. If you're into networking its a really cool protocol with loads of functionality. I use to use QinQ tunneling before I found out about l2tp. I can't tell you how weird/awesome/satisfying it is seeing it work. You can literally connect to another county at layer 2 rather than the traditional layer 3. So like if you did an arp in Belgium site, then would be able to see the arp reply from a site in Switzerland. It really sounds shit if you're not into geeky stuff, but for me I thought it was great!
 
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