Talk:Tunneling protocol

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Template:FOLDOC talk

Why is PPP over modem not tunneling?

Why is PPP over a POTS or ISDN modem not considered as tunneling? PPP over modem is an LLC protocol encapsulated in another. Okay, a modem behaves as if it were a circuit switched physical link (an asynchronous serial link), but modern modems include LLC sublayer, since they divide the data into blocks (some kind of packets) rather than codewords (there are no start and stop bits), and performs packet mode flow control and automatic repeat request.

I don't undertand the definition, that tunneling is encapsulation of A in B as if B were a datalink protocol. In many tunelling protocols B is a datalink protocol. Example: PPPoE, PPPoA, etc. Mange01 18:09, 15 November 2006 (UTC)[reply]

Why was the web link removed by anti-vandalism bot?

User:Starunj (who I am not affiliated with) added the following external reference to Tunneling protocol: Tunneling SSH from behind an HTTP proxy server

Why was this considered as vandalism and reverted by VoABot_II ? Mange01 12:30, 5 December 2006 (UTC)[reply]

Answer at the user talk:VoABot_II page:

One regexp was too short (for deteting all consonant garbage words). Fixed.Voice-of-All 19:24, 5 December 2006 (UTC)[reply]

Okay . I revert the bot revert. Mange01 22:17, 6 December 2006 (UTC)[reply]

An SSH tunnel is not a VPN

SSH tunnel != VPN

A VPN is a totally different animal the an SSH tunnel. They should not be confused. This is like confusing HTTP and HTML. The SSH protocol does not specify anything about VPN features. It is true the OpenSSH implements a VPN feature, but this is a feature on top of the SSH protocol. And only OpenSSH versions 4.3 or later implement this feature. And you must use an OpenSSH client that implements the VPN feature to talk to an OpenSSH server that also implements the VPN feature. This VPN feature is not compatible with any other VPN clients or any other SSH clients. A VPN is an abstract concept. It is not a standard protocol and has no specification. A VPN does not even have to be encrypted.

--Noah (talk) 09:59, 7 November 2008 (UTC)[reply]