Vigor2920 Series User’s Guide
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IPv4 Mask Length
Type a number of high-order bits that are identical across
all CE IPv4 addresses within a given 6rd domain.
It may be any value between 0 and 32.
6rd Prefix
Type the 6rd IPv6 address.
6rd Prefix Length
Type the IPv6 prefix length for the 6rd IPv6 prefix in
number of bits.
After finished the above settings, click OK to save the settings.
Below shows an example for successful IPv6 connection based on 6rd mode.