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2013-10-10
, 04:56
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Community Council |
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@ Southerrn Finland
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#2
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Just came across this page accidentally: http://www.cs.uit.no/~daniels/PingTunnel/
It says it can convert TCP packets to ICMP. Seriously?
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2013-10-10
, 05:39
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Joined on Jul 2012
@ Graveyard
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#3
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Now I am confused, what is very very what? and what is less than what?
Some things you have to consider; Normally when tunneling you will gain extra headers which of course means that if your original packets are close to MTU in size, you should propably fragment the packets or make sure that TCP segmenting breaks the data into a bit shorter chunks. Else you will get suboptimal performance as most of your data will be unevenly fragmented on transit.
Also note that many routers are optimized for TCP stream forwarding, and when you encapsulate your TCP into ICMP the congestion handling algorithms do not work as meant.
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2013-10-10
, 07:09
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Community Council |
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@ Southerrn Finland
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#4
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I was referring to the traffic volume which would be measured by ISP. I thought instead of TCP, if the ISP is measuring ICMP, the volume measured will be less (as per the source where I found this link).
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2013-10-10
, 08:20
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@ UK
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#5
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2013-10-10
, 09:03
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Community Council |
Posts: 4,920 |
Thanked: 12,867 times |
Joined on May 2012
@ Southerrn Finland
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#6
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Where is the thank you button when you need it? @juiceme, you've nailed it!
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2013-10-10
, 09:35
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Posts: 308 |
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Joined on Jul 2012
@ Graveyard
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#7
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Well I suppose that could bo so if the ISP in question measures traffic volume based only on forwarded TCP/IP packets... What kind of ISP are you thinking about here, a mobile TELCO or some DSL/cable provider?
In reality the ISP will see more bytes to/from your location, because of the added header overhead
It says it can convert TCP packets to ICMP. Seriously?
If yes, the traffic monitored by ISP will be in ICMP or TCP? If it is in ICMP, won't that be very very less than TCP?