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| n |
Router
accept often only “topological correct“ addresses
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(firewall!)
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– |
a
packet from the MN encapsulated by the FA is now topological
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correct
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– |
furthermore
multicast and TTL problems solved (TTL in the home
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network
correct, but MN is too far away from the receiver)
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| n |
Reverse
tunneling does not solve
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– |
problems
with firewalls, the reverse tunnel can be abused to
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circumvent
security mechanisms (tunnel hijacking)
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– |
optimization
of data paths, i.e. packets will be forwarded through
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the
tunnel via the HA to a sender (double triangular routing)
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| n |
The
standard is backwards compatible
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– |
the
extensions can be implemented easily and cooperate with
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current
implementations without these extensions
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– |
Agent
Advertisements can carry requests for reverse tunneling
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