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11 lines
715 B
Plaintext
11 lines
715 B
Plaintext
This scenario enables IPComp compression between roadwarrior <b>carol</b> and
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gateway <b>moon</b>. Two IPv6 ICMP requests from <b>carol</b> to <b>alice</b>
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check the established tunnel with compression. The packet sizes are different
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because the kernel does not compress small packets.<br/>
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<b>Note:</b> The kernel applies IPComp after fragmenting the original packet
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according to the MTU. Also, because <b>alice</b> does not know about the IPsec
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tunnel between <b>moon</b> and <b>carol</b> the response to the first ICMP
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request is fragmented in too large fragments and <b>moon</b> sends back ICMPs
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with type 2 to notify <b>alice</b> about this (Path MTU Discovery).
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The second ping is then answered successfully.
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