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Difference Between GRE an...

Difference Between GRE and IPSec

Latest reply: Oct 13, 2018 10:39:51 725 4 0 0 0
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What Are the manin difference between GRE and IPSec?

 

Answer:

IPSec encrypts only unicast packets, but not multicast packets. GRE can encapsulate multicast packets into unicast packets, but cannot encrypt packets.  The major function of GRE is to encapsulate IPv6 packets and multicast packets, such as routing protocol, voice, and video packets.

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2#
faysalji
Author Created Oct 13, 2018 10:37:05

IPsec stands for Internet Protocol Security while GRE stands for Generic Routing Encapsulation.
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3#
faysalji
Author Created Oct 13, 2018 10:37:22

IPsec is the primary protocol of the Internet while GRE is not.
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4#
faysalji
Author Created Oct 13, 2018 10:37:45

GRE can carry other routed protocols as well as IP packets in an IP network while IPSec cannot
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5#
faysalji
Author Created Oct 13, 2018 10:39:51

GRE is a tunneling protocol which is used to transport multicast, broadcast and non-IP packets like IPX etc. IPSec can only transport unicast packets not multicast & broadcast.
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