Cradlepoint IBR600 Product Manual page 77

COR | USER MANUAL Firmware ver. 5.0.0
CRADLEPOINT
6.4.2 Network Prefix Translation (Advanced)
Network Prefix Translation is used in IPv6 networks to translate one IPv6 prefix to another.
experimental specification
however, NPT is stateless and preserves the IPv6 principle that each device has a routable public address. But it still
breaks any protocol embedding IPv6 addresses (e.g. IPsec) and is generally not recommended for use by the IETF. NPT
can help to keep internal network ranges consistent across various IPv6 providers, but it cannot be used effectively in all
situations.
The primary purpose for CradlePoint's NPT implementation is for failover/failback and load balancing setups. LAN clients
can potentially retain the original IPv6 lease information and may experience a more seamless transition when WAN
connectivity changes than if not utilizing NPT.
Mode:
• None – No translation is performed
• Load Balance Only – (Default) Only
translate networks when actively load
balancing
• First – Use the first IPv6 prefix found
• Static – Always use a static IPv6 translation (input the prefix here)
Transitioning from short prefix to a longer prefix (such as from /48 to /64) is not without problems, as some of the LANs
may lose IPv6 connectivity.
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(RFC 6296) trying to achieve address independence similar to NAT in IPv4. Unlike NAT,
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IPv6 prefix translation
FOR MORE HELP AND RESOURCES
is an
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