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Author Topic: Protocol 41 overhead and encrypted VPN overhead  (Read 2125 times)

evantkh

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Protocol 41 overhead and encrypted VPN overhead
« on: February 23, 2015, 01:31:29 AM »

Is the overhead of using protocol 41 smaller than encrypted vpn protocols?
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broquea

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evantkh

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Re: Protocol 41 overhead and encrypted VPN overhead
« Reply #2 on: February 23, 2015, 06:53:04 PM »

Therefore, am I correct to say that the overhead of protocol 41 is smaller because it is just putting IPv6 packets into a IPv4 packet without any handshaking with the protocol 41 peer?
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broquea

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Re: Protocol 41 overhead and encrypted VPN overhead
« Reply #3 on: February 23, 2015, 08:05:21 PM »

I'd agree with that. P41 is 20 bytes overhead, whereas IPSec and options can eventually add up higher. Don't know about GRE, but its easy enough to research if you need to.
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evantkh

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Re: Protocol 41 overhead and encrypted VPN overhead
« Reply #4 on: February 24, 2015, 03:13:23 AM »

Do you know any similar mechanism which can be used for sending Layer 3 transparent packets with low overhead and no need handshaking over IPv4 internet?
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