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What are the differences between tunneling and regulare encapsulation?


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What are the difference between tunneling (https://en.wikipedia.org/wiki/Tunneling_protocol) and regular encapsulation (e.g. TCP/UDP over IP, HTTP/SSH over TCP)?



Is TCP/UDP over IP considered tunneling?



Is HTTP/SSH over TCP considered tunneling?



Thanks.










share|improve this question





























    1















    What are the difference between tunneling (https://en.wikipedia.org/wiki/Tunneling_protocol) and regular encapsulation (e.g. TCP/UDP over IP, HTTP/SSH over TCP)?



    Is TCP/UDP over IP considered tunneling?



    Is HTTP/SSH over TCP considered tunneling?



    Thanks.










    share|improve this question



























      1












      1








      1








      What are the difference between tunneling (https://en.wikipedia.org/wiki/Tunneling_protocol) and regular encapsulation (e.g. TCP/UDP over IP, HTTP/SSH over TCP)?



      Is TCP/UDP over IP considered tunneling?



      Is HTTP/SSH over TCP considered tunneling?



      Thanks.










      share|improve this question
















      What are the difference between tunneling (https://en.wikipedia.org/wiki/Tunneling_protocol) and regular encapsulation (e.g. TCP/UDP over IP, HTTP/SSH over TCP)?



      Is TCP/UDP over IP considered tunneling?



      Is HTTP/SSH over TCP considered tunneling?



      Thanks.







      protocol-theory tunnel






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 3 hours ago









      Zac67

      31.3k21961




      31.3k21961










      asked 4 hours ago









      TimTim

      428416




      428416






















          2 Answers
          2






          active

          oldest

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          2














          Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.



          Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.



          The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.






          share|improve this answer
























          • Thanks. What does "It somewhat ties a knot in your layering model" mean?

            – Tim
            3 hours ago











          • He means that tunneling does not fit into the OSI or TCPIP model very well.

            – Ron Trunk
            55 mins ago



















          1














          For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail






          share|improve this answer























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            2 Answers
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            2 Answers
            2






            active

            oldest

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            active

            oldest

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            active

            oldest

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            2














            Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.



            Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.



            The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.






            share|improve this answer
























            • Thanks. What does "It somewhat ties a knot in your layering model" mean?

              – Tim
              3 hours ago











            • He means that tunneling does not fit into the OSI or TCPIP model very well.

              – Ron Trunk
              55 mins ago
















            2














            Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.



            Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.



            The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.






            share|improve this answer
























            • Thanks. What does "It somewhat ties a knot in your layering model" mean?

              – Tim
              3 hours ago











            • He means that tunneling does not fit into the OSI or TCPIP model very well.

              – Ron Trunk
              55 mins ago














            2












            2








            2







            Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.



            Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.



            The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.






            share|improve this answer













            Encapsulation is the normal method of using a lower layer mechanism for moving your data. E.g. HTTP is encapsulated by TCP, TCP is encapsulated by IPv4, IPv4 is encapsulated by an Ethernet frame.



            Encapsulating backwards or at the same layer - IP in GRE, IP in IPsec, IP in UDP, Ethernet in L2TP, ... is called tunneling. It somewhat ties a knot in your layering model.



            The most common use for tunneling is to allow you to pass packets/frames across a network that doesn't support the protocol or addressing scheme. You can tunnel private IP address packets across a public IP network, IPv4 over an IPv6 network or vice versa, Ethernet frames across a layer-3 connection, and so on.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 3 hours ago









            Zac67Zac67

            31.3k21961




            31.3k21961













            • Thanks. What does "It somewhat ties a knot in your layering model" mean?

              – Tim
              3 hours ago











            • He means that tunneling does not fit into the OSI or TCPIP model very well.

              – Ron Trunk
              55 mins ago



















            • Thanks. What does "It somewhat ties a knot in your layering model" mean?

              – Tim
              3 hours ago











            • He means that tunneling does not fit into the OSI or TCPIP model very well.

              – Ron Trunk
              55 mins ago

















            Thanks. What does "It somewhat ties a knot in your layering model" mean?

            – Tim
            3 hours ago





            Thanks. What does "It somewhat ties a knot in your layering model" mean?

            – Tim
            3 hours ago













            He means that tunneling does not fit into the OSI or TCPIP model very well.

            – Ron Trunk
            55 mins ago





            He means that tunneling does not fit into the OSI or TCPIP model very well.

            – Ron Trunk
            55 mins ago











            1














            For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail






            share|improve this answer




























              1














              For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail






              share|improve this answer


























                1












                1








                1







                For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail






                share|improve this answer













                For me tunnelling is when you have another level of routing and once you reach one destination of one of the layers the datagram progress to another destination, for example when you have two IP layers on the same datagram, and encapsulation is just put information over TCP/UDP, that basically is put information to be read on the destination. Probably other users have better responses and with more detail







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 4 hours ago









                camp0camp0

                13111




                13111






























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