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- Mark Wooding
January 8, 2009, 7:33 pm
rate this thread
refusing to accept the message because it's so massively crossposted.]
Paul Rubin <http> wrote:
IPsec (lowercase `s') works at the IP level, either by inserting an
additional header between the IP header and the next-layer protocol, or
by encapsulating an entire IP packet. It can therefore carry any
protocol based on IP, including TCP, UDP, ICMP, and others.
Use the `tunnel mode' (which does indeed encapsulate the entire packet);
`transport mode' fails to protect the integrity of the outer IP header.
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