LISP: FRITZ!Box as a LISP Router
FRITZ!Box 7490 101
Possible Uses
• LISP is useful if technical or organization reasons make
it preferable to keep the same IP addresses, even when
you switch Internet service providers.
Mobility example: When you change locations, devices
do not lose their identity (host devices, VM).
• LISP is suitable for communication between IPv4 and
IPv6 networks.
• Transport of address families: IPv4 via IPv4, IPv4 via
IPv6, IPv6 via IPv6, IPv6 via IPv4
Example: The encapsulation of IPv6 packets in IPv4
headers allows IPv6 web sites to be connected over
IPv4.
PETR (Proxy ETR) A PETR (Proxy ETR) is required for communica-
tion between LISP sites and non-LISP sites. On
the LISP site it works like a LISP router; on the
non-LISP site it works like a native IP router.
PITR (PROXY ITR) A PITR (Proxy ETR) is required for communica-
tion between LISP sites and non-LISP sites. On
the LISP site it works like a LISP router; on the
non-LISP site it works like a native IP router.
xTR xTR is what we call a component that is both
ETR and ITR. xTR is also known as a tunnel
endpoint or encapsulation endpoint.
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